Free Printable Aquarium Maintenance

Worksheets

Aquarium Maintenance

Total questions: 25

Worksheet time: 1hrs 13mins

Name

Class

Date

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

When you determine the size of the tank/aquarium, why do you have to divide by 231 after calculating the LxHxW?

Convert inches over to liters

Convert inches cubed to gallons

Convert inches to gallons

The two types of filtration that a properly filtered aquarium must have in order to become well maintained is good ____ and _____________ filtration

bio and biological

tank and mechanical

bio and mechanical

Why do goldfish need more gallons per fish than normal aquarium fish?

Goldfish need 8-10 gallons per fish.

They tend to be dirty and their bodies are fatter.

Goldfish feed at the bottom of the tank.

Which filtration system holds more beneficial bacteria due to having media baskets?

canister filter

hang on the back filter

sponge filter

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

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

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

filtration system

proper amount of surface area

Partial water changes

What type of filtration removes ammonia and nitrites as part of the natural process called the nitrogen cycle?

mechanical filtration

chemical filtration

biological filtration

10.

If you are going to do a 20% water change in a 50 gallon aquarium, how much water are you going to replace?

10 gallons

5 gallons

7 gallons

11.

Which one of the following is not a water parameter that we would test or measure.

Temperature

Salinity

Nutrients

Ammonia

12.

The dimensions of the tank are as follows: 30 in x 12.5 in x 12.5 in
How many gallons does the tank hold?

55 gallons

15 gallons

20 gallons

13.

If you are not an experienced aquarist or new to taking care of an aquarium be sure that your tank is _________________.

well stocked

well decorated

less crowded

14.

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

Nitrosomonas

Nitrobacter

Ammonia

water

15.

Be careful to buy fish from a pet store or fish aquarium that has a _________________ because if one fish is sick they all could be sick.

single tank filtration systems

central filtration system

canister filtration systems

16.

The specific gravity or salinity level of a saltwater tank should read between _______ and _________ when you measure it with a hydrometer.

1.020 and 1.024

1.028 and 1.032

1.20 and 1.30

17.

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

18.

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

10-50% depending on the results

10-20%

5 gallons per week

19.

You should not overfeed your aquarium fish. The golden rule for feeding fish is to give them only enough food that they will eat in ___ minutes.

30 seconds

20.

What is the biggest source of organic phosphate in the aquarium?

decaying plant matter

algae

fish food

21.

How can you significantly reduce the levels of accumulating phosphates in your tank?

rinse off excess organic matter from filter material.

gravel vacuum the tank.

water change.

all of the above.

22.

Excess levels of nitrogen and phosphorus can be caused by ?

overfeeding, over changing the water, and overstocking.

dead decaying matter, overstocking, and excess water changes.

overstocking, overfeeding, and dead decaying matter.

23.

Which cycle converts decaying organic matter from ammonia all the way to nitrate?

Nitrogen cycle

Ammonia cycle

Nitrate cycle

24.

What is the chemical formula for Nitrite?

NHO₂

NO₃^-

NO₂^-

NI₂^-

25.

What is a safe level of Nitrate and Nitrite respectively?

less that 50 ppm and less than 0.5

10-20 and 50-100

.5 and 50 ppm

100 %

Aquarium Maintenance

Total questions: 25

Worksheet time: 1hrs 13mins

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