True/False
Indicate whether the
statement is true or false.
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1.
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Sponge filters are only
mechanical filtration.
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2.
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Angel fish make good starter
fishes for 1st time aquarists because of their long, flowing fins.
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3.
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A good piece of live rock is a
self-contained biological filter.
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4.
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Mouth‘fungus’ is
related to body fungus and is affected by similar treatments.
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5.
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Seahorses and Pipefish are a
good choice for beginning saltwater aquarist.
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6.
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A constant diet of one type of
flake, frozen, or freeze-dried food will keep marine fish healthy and vibrant over the long
term.
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7.
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The majority of aquarium
species, however, while constant snackers, are not omnivores but rather
herbivores.
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8.
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When both ammonia and nitrites
remain a zero, your tank has cycled.
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9.
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Surface are is not a factor in
determining the carrying capacity of an aquarium.
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10.
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The BEST treatment when fishes
are ailing is not to do water changes, thus leaving their environment
undisrupted.
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11.
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Bunch plants with either a
metal strip or rubber band around their stems should be planted the way they
arrive.
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12.
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A breeding tank is set up to
minimize both the chance of spawning and the chance of survival for the young.
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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13.
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The most common causes of
failure in a new aquarium are:
a. | overfeeding | d. | all of these are correct | b. | overcrowding | e. | none of these are correct | c. | incompatibility |
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14.
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An aquarium can be maintained
with the absolute minimum of filtration equipment if an aquarist is willing to:
a. | heavily plant and stock
tank | b. | 90% water change once or twice a week | c. | use of chemical balancer | d. | heavily stock tank with no
plants |
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15.
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Which fish of the following
list of fishes should a beginning aquarist avoid?
a. | Royal
Gramma | c. | Rock Beauty
Angelfish | b. | Yellowtail Damselfish | d. | Yellow Tang |
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16.
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Most aquarium species will do
well between
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a. | 70 to 72 degrees
Fahrenheit | c. | 76 to 80
Fahrenheit | b. | 72 to 74 degrees Fahrenheit | d. | 86 to 90 Fahrenheit |
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17.
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Fishes live in an aqueous
environment, and their waste products are released
,
a. | As dissolved
ammonia | d. | all of these are
correct | b. | Excreted through the gills | e. | none of these are correct | c. | as solid
waste |
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18.
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How often should an adult Oscar
be fed?
a. | Twice a
day | c. | Twice a
week | b. | Once a week | d. | Three times a week |
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19.
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Giant Danios would be a good
choice for a
gallon tank.
a. | 10
gallon | b. | 20
gallon | c. | 29
gallon | d. | 50
gallon |
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20.
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A higher ratio of surface area
to volume allows for
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a. | Greater gas exchange at air/water
interface | b. | Lesser gas exchange at air/water interface | c. | Greater chance of suffering poor
oxygenation | d. | Greater need for mechanical
assistance |
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21.
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Fin & tailrot are brought
on by:
a. | low
temperatures | c. | unhygienic
conditions | b. | physical damage | d. | all of these are correct |
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22.
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The two major nutrients of
importance in an aquarium are:
a. | ammonia &
nitrite | c. | ammonia &
phosphate | b. | phosphate & nitrate | d. | nitrite & nitrate |
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23.
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Heaters should be placed
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a. | horizontally | d. | under the filter return | b. | on the back glass | e. | all of these are correct | c. | just above the gravel | f. | none of these are correct |
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24.
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Which is an important protein
source for herbivorous fishes?
a. | Crustaceans | b. | plants | c. | algae |
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25.
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What system requires
practically no equipment & no labor once it is set up?
a. | hang-on the
tank | d. | all of these are
correct | b. | undergravel | e. | none of these are correct | c. | trickle
filter |
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26.
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Nylon pads, filter floss,
sponge, pleated cartridges are examples of what type of filtration?
a. | chemical | c. | biological | b. | mechanical | d. | diatomaceous |
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27.
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In a well-oxygenated aquarium,
fishes gasp at the surface because:
a. | Their breathing in hindered by
parasites | b. | Damage to their gills | c. | toxins in the water | d. | all of these are correct | e. | none of these are
correct |
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28.
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Which cichlid would be suitable
for a community setup?
a. | Kribensis | b. | Mbuna | c. | Pacu | d. | Oscar |
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29.
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To thoroughly disinfect a
previously used tank, which of the following may be used?
a. | hydrogen
peroxide | c. | both | b. | solution of chlorine bleach | d. | neither |
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30.
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Quarantine tanks being used for
treating sick fishes should:
a. | Have filtration turned
off | c. | all of these are
correct | b. | should not have extra aeration | d. | none of these are correct |
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31.
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Where does gas exchange-oxygen
in, carbon dioxide out-occur?
a. | Bottom of the
tank | c. | Top of the
tank | b. | Back of the tank | d. | Sides of the tank |
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32.
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Algae allowed to grow on the
back of a tank will:
a. | absorb
nutrients | b. | keep algae from growing on plants and rocks | c. | Contribute to the diet of the fishes in the
tank | d. | all of these are correct | e. | none of these are
correct |
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33.
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Ultraviolet Sterilizer
eliminate:
a. | Pathogens | d. | beneficial microorganisms | b. | disease outbreaks | e. | all of these are correct | c. | algal blooms |
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34.
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In any system, it is best to
maximize the horizontal flow of water across the top of the water, since doing so maximizes
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a. | ammonia
exchange | c. | gas
exchange | b. | pH exchange | d. | microorganism exchange |
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35.
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What two cichlids are native to
the United States?
a. | Firemouth and
Texas | c. | Texas and Jack
Dempsey | b. | Oscar and Jack Dempsey | d. | Firemouth and Oscar |
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36.
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Grouper fishes are in the
category.
a. | fast-aggressive | c. | moderately aggressive | b. | slow-aggressive | d. | docile |
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37.
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What substance is produced by
both fishes and the bacteria t hat decompose fish wastes, uneaten food and other organic substances
in the water?
a. | phosphates | d. | ammonia | b. | nitrates | e. | pH | c. | nitrites |
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38.
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Characteristics need to be
considered when choosing a substrate. Which of the following characteristics is
desired?
a. | rounded shape, typical of reef sand
or crushed coral | b. | coarse to trap detritus | c. | small to pack down | d. | different sizes to produce
“channeling” |
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39.
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Microorganisms are aerobic,
meaning they need
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a. | low and no-oxygen
environment | c. | anaerobic bacteria
| b. | hydrogen
sulfide | d. | high-oxygen
environment |
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40.
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After spawning, eggs usually
hatch in:
a. | a day | c. | a week | b. | a couple days | d. | 10 days |
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41.
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Marine fishes are constantly
consuming water. Which of the following should not be fed through the water if a new fish completely
refuses to eat?
a. | fructose | c. | dextrose | b. | glucose | d. | sucrose |
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42.
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Zebra Danios
are:
a. | egg-depositors | c. | egg-scatterers | b. | mouth-depositors | d. | bubble-nest builders |
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43.
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Mollies are not problem fishes
but should be reserved for a later time after aquarist has more experience
because:
a. | they are not sensitive to water
conditions | b. | they do not require a lot of space | c. | they do best in brackish or salt
water | d. | all of these are correct | e. | none of these are
correct |
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44.
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Generally speaking, which
substrate is the best for most common aquarium?
a. | medium
gravel | c. | coarse
gravel | b. | sand | d. | glass
chips |
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45.
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Kelvin is a measurement
of:
a. | watts | c. | light spectrum | b. | volts | d. | all of these are correct |
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46.
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The best way to cool an
aquarium during severe heat spells is to:
a. | add cold
water | c. | use a fan over the
surface | b. | add ice cubes | d. | none of these are correct |
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47.
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Goldfish do not belong in
tropical tanks because:
a. | they suffer at tropical
temperatures | b. | they grow much to big | c. | they produce too much
waste | d. | all of these are correct | e. | none of these are
correct |
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48.
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Not only does cooler water hold
more oxygen, but lower temperatures also result in
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a. | fishes eating
more | c. | slower
metabolism | b. | fishes growing faster | d. | fishes living shorter lives |
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49.
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Gestation period for
live-bearing fish is
.
a. | 30 days | c. | 50 days | b. | 40 days | d. | none of these are correct |
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50.
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Biofiltration depends on three
supports
,
, and
.
a. | pH, ammonia, &
nutrients | c. | surface area,
oxygen, & nutrients | b. | ammonia, nitrates, & oxygen | d. | ammonia, nitrites, &
nitrates |
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51.
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When water evaporates from an
aquarium, the dissolved material-minerals, acids, bases, buffers, waste
products:
a. | all become more
concentrated | b. | all become less concentrated | c. | does not change at
all |
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52.
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The biggest factor in figuring
stocking rates is waste production. Which of the following fishes waste is more
potent?
a. | pacu is largely vegetarian consuming
huge amounts of low-nutrition food | b. | eel is totally carnivorous consuming very high protein content
food | c. | both of these are correct | d. | neither
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53.
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What is currently accepted
recommended rule of thumb for stocking a marine aquarium?
a. | 1 inch of fish per 5
gallons | d. | 1 fish per 5
gallons | b. | 1 inch of fish per gallon | e. | none of these are correct | c. | 1 fish per
gallon |
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54.
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Water filtered through peat
moss:
a. | Drops the
hardness | c. | adds
calcium | b. | increases the pH | d. | filters out acid |
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55.
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To distribute the weight of an
aquarium, it should be located:
a. | on one floor
joist | c. | across several floor
joists | b. | between two floor joists | d. | parallel to the floor joists |
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56.
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The most common mistake made by
aquarium hobbyist is:
a. | over
feeding | c. | not enough hiding
places | b. | not enough light | d. | overcrowding |
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57.
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After the damselfishes, what
fishes have more pugnacity inch for inch than virtually any other commonly kept marine
family?
a. | chaetodonitdae | c. | apogonidae | b. | pseudochromidae | d. | plesidopidae |
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58.
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The three types of filtration
are
,
, &
.
a. | sand; undergravel;
sponge | d. | chemical; mechanical; biological
| b. | sand; undergravel;
trickle | e. | filter floss; carbon;
bioballs | c. | hang-on-tank; box; corner |
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59.
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A non-level tank will be
subject to:
a. | interference with filter’s
operation | d. | all of these are
correct | b. | leaks | e. | none of these are
correct | c. | breakage |
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60.
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Which of the following is not
needed for maximum plant growth?
a. | low-intensity
lighting | c. | CO2
supplementation | b. | substrate fertilizers | d. | mineral supplements |
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61.
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Fishes; stomachs are about the
size of their:
a. | tails | b. | gills | c. | scales | d. | eyes |
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62.
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All food should be cleaned up
completely within
.
a. | 1 to 2
minutes | b. | 2 to 3
minutes | c. | 3 to 4
minutes |
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63.
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Cycling an aquarium refers
to:
a. | water
circulation | b. | certain bacteria starting to grow | c. | speed at which water travels through the
filter | d. | all of the above |
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64.
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What makes cheap fishes
cheap?
a. | easily
bred | d. | all of these are
correct | b. | easily caught | e. | none of these are correct | c. | not at all scarce in the
wild |
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65.
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Which of the following fishes
are not recommended for cycling a tank?
a. | rosy
barb | c. | guppies | b. | white cloud | d. | feeder goldfish |
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66.
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What is the absolute minimum
for filter flow rates?
a. | 4-5 times the tank volume per
hour | c. | 6-7 times the tank volume per
hour | b. | 5-6 times the tank volume per hour | d. | none of the above |
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67.
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The most important regular
maintenance procedure an aquarist performs is
.
a. | cleaning the
filter | b. | partial water changes | c. | removing algae from aquarium
glass | d. | changing filter media |
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68.
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Biotope Tank refers to a tank
with:
a. | ornamental
design | c. | instructional
curriculum | b. | natural environment | d. | single species |
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69.
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When a marine fish infected
with marine velvet has been places in a quarantine tank, the specific gravity should be
.
a. | 1.026 to
1.028 | c. | 1.010 to
1.012 | b. | 1.030 to 1.032 | d. | 1.014 to 1.016 |
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70.
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When cleaning the mechanical
medium, wash it in:
a. | soapy
water | c. | aquarium
water | b. | chlorinated tap water | d. | bleach water |
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71.
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The recommended filter for
first time aquarists is:
a. | hang-on outside
filter | c. | canister
filter | b. | undergravel filter | d. | wet-dry filter |
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72.
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What is the best food to offer
your fishes?
a. | feeder
fishes | d. | all of these are
correct | b. | wafers | e. | none of these are
correct | c. | variety |
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73.
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Chinese Algae Eaters are not
good for new tanks because:
a. | they do not eat
algae | c. | Often starve to
death | b. | they don’t come from China | d. | none of these are correct |
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74.
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Kissing Gouramis kiss
because:
a. | they are
aggressive | c. | they are
breeding | b. | they are choosing a mate | d. | none of the above |
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75.
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Formalin will not kill which of
the following?
a. | brittle
star | c. | watchman
goby | b. | snail | d. | coral |
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