Welcome to Tim's Tropicals Advanced Freshwater Quiz.
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What is a good nitrite reading for your aquarium water in parts per million?
Which fish breed on large flat surfaces, such as rocks or the inside of flower pots?
Which of these don't have a species don't have a variety with "rainbow" in their name?
This is a picture of a
A pH of < 7 is
Which is produced first in the water quality cycle?
Which of these steps is not a good idea for dealing with an aquarium with an ammonia problem?
Aerate with a bubbler
Stop feeding your fish
Clean the gravel
Test the waterwith a test kit
Which of these types of filtration removes particles from the water?
Which of the following hold live fry in their mouth?
Which fin is the tail fin?