Students also will be able to check their tank's ammonia level.
Ammonia is produced by fish as their waste product and from uneaten food.
If a tank has proper filtration, has regular water changes, is not overstocked with fish and has fish which are not overfed, then ammonia should not be a problem. The ammonia reading in the healthy tank should be zero. TetraTest Ammonia Kit can give a simple, accurate determination of ammonia in a freshwater tank. If the ammonia level is too high, the kit also suggests the appropriate remedy. Ask the students if they have ever heard of a substance called ammonia.