Free Printable 3 Aquarium (+ Perch) Review

Worksheets

3 Aquarium (+ Perch) Review

Total questions: 40

Worksheet time: 38mins

Name

Class

Date

A method(s) often used to remove particles from the water could be

changing the water

a “hanging” filter

an undergravel filter

all are used to remove particles from the water

The most important gas in an aquarium is

oxygen

ammonia

nitrogen

carbon dioxide

In general, which type of tank can be easier to maintain?

saltwater tank

freshwater tank

both are the same

The letters pH refer to

percent of H₂O

parts in a hundred

percent/power of hydrogen ions

possible hydrography

Which of the following is needed for a saltwater aquarium only?

thermometer

heater

filter

hydrometer

The range for the pH of freshwater tanks should be?

6.8 - 7.2

7.8 - 8.5

. 6.5 - 7.0

8.2 - 8.7

One of the most common fish diseases, Ich, is caused by a

bacteria

protozoan

fungus

virus

Toxic material(s) in salt water tanks would include

*- painted decorations

**-coral/sand

***-metallic objects

both * & ***

Excess food should be removed after

5-10 min

1 hour

30 min

2-3 min

10.

In saltwater tanks, a material used as a buffer must have

lots of pH

a. salt

calcium carbonate

hydrogen sulfide

11.

An organism feeding on the living tissues of another is

predation

gross

territoriality

parasitism

12.

Territoriality can be between

the same species

different species

both may cause territoriality

neither causes territoriality

13.

One example of a beneficial bacteria in a fish tank is?

Anaerobic

Nitroglycerin

Artemia

Nitrobacter

14.

Which of these is the correct way that the nitrogen cycle works?

nitrate--> ammonia-->nitrite

nitrite --> nitrate -->ammonia

ammonia -->nitrite--> nitrate

ammonia -->nitrate--> nitrite

15.

An ideal temperature range for a freshwater tank

75^o- 80^o F

80^o - 85^oF

78^o - 82^oF

68^o- 72^o F

16.

The ideal pH range for a saltwater tank is about

6.8 – 7.2

7.8 – 8.5

6.5 – 7.0

a. 8.2 – 8.7

17.

Which of the following could be reasons that your tank is cloudy?

Overfeeding/Overpopulation

Insufficiently filtered

Bacteria bloom

all reasons for the tank to be cloudy

18.

The function of sand/coral in a saltwater aquarium is

*- to provide a place of attachment for bacteria

**- to buffer the pH of the tank

***- to increase the salinity of the salt water

both * & **

19.

What happens to the salinity levels in the water after evaporation occurs?

It increases

It decreases

It stays the same

It also evaporates

20.

Which of the following is most toxic step of the nitrogen cycle?

Nitrite

Nitrate

Ammonia

all are equal

21.

Chemical filtration is actually accomplished by using?

Filter bag/cartridge to catch or trap particles

Bed of activated carbon rocks or sand that removes and traps the toxins in the rocks

A bio bag that absorbs toxic chemicals and breaks down organic waste

A culture of beneficial bacteria to consume solid wastes

22.

A hydrometer is used to measure what in an aquarium

*- the density of a liquid

**-the volume of a liquid

***-the salt content of a liquid

both * and ***

23.

After eating Ammonia, the bacteria in our tanks directly produce a less harmful waste product known as __________ then convert it to the least toxic waste product ____________.

Nitrate / Nitrite

Nitrite / Nitrate

Nitrogen/Nitrate

Nitrogen/Nitrite

24.

An Undergravel filter is used as a type of filter for saltwater tanks.

True

False

25.

Never wash the inside of your tank with soaps.

True

False

26.

Most fish diseases occur within the first few weeks after the fish have been put in the tank.

True

False

27.

Nitrate is the most toxic waste in a fish tank.

True

False

28.

Some examples of community fish are mollies, guppies, tertras, and bettas.

True

False

29.

Angelfish, clownfish, and anemones are examples of organisms found in a coral reef saltwater tank.

True

False

30.

The conversion to nitrite is the last step of the Nitrogen Cycle.

True

False

31.

Nitrosomonas bacteria convert nitrite into nitrate.

True

False

32.

Perch belong to which of the following class of organisms

Class Chondricthyes

Class Agnatha

Class Osteichthyes

Class Pisces

33.

What is found on the outside of the body, which is sensitive to vibrations in the water & allows the fish to sense differences in pressure, low-frequency sounds, current directions, and temperature changes in the water?

Lateral Line

Operculum

Nostrils

Air/swim bladder

34.

In aquariums like the ones in our classroom, the fish, organisms, and plants all live in what is called a/an ____________________?

biome

closed ecosystem

open ecosystem

35.

Using a good water testing kit to measure water parameters such as ammonia, nitrites, and nitrates leads to having?

Proper feeding and cleaning routines

Poor water quality

Well maintained water chemistry

36.

If your water still has nitrates levels over 40-50 ppm after proper feeding and proper water changes, then ________________________________.

you have an overstocked aquarium

you have a balanced aquarium

you have an under stocked aquarium

37.

What is the single most important factor for having a successful aquarium?

filtration system

proper amount of surface area

Partial water changes

38.

What is the name of the bacteria that converts nitrites to nitrates? Look at the diagram

Nitrosomonas

Nitrobacter
plants

Ammonia
nitrobacter

water

39.

What is the very basic principle as a starting point for the amount of fish you can put into an aquarium?

1-2 inches of narrow bodied fish per filtered gallon

1 goldfish per 8-10 gallons

1 fish per gallon of filtered water

40.

Routine water changes should be a part of your regular maintenance schedule. Water percentage of water should you change per week?

50%

10-30%

5 gallons per week

Reset

3 Aquarium (+ Perch) Review

Total questions: 40

Worksheet time: 38mins

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