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If the questions is what is the waste product of freshwater fish, then that would be ammonia.
Freshwater Fish product ammonia which is excreted through their gills and into their water, to keep this poisen to a minimum you need to a filter which has bacterial build up in the media which lives on ammonia and converts it into nitrite, then another group of bacteria absorb nitrite and product nitrates. Nitrates are much less dangerous to fish and some of them are used up by plants so planted tanks are much healthier for fish nitrates however do need to be kept low and weekly water changes should do that effectively.
What else can I help you with?
Why do marine fish excrete urine and why in fresh water excrete urea?
Neither marine nor freshwater fish excrete urine or urea; both marine and freshwater fish excrete nitrogenous waste products as pure ammonia.
Is a loach fish a saltwater or freshwater fish?
Loaches are freshwater fish, for example, the clown loach which is a freshwater fish.
Do freshwater fish breed with other freshwater fish?
It depends on which fish it
Are the platy fish saltwater or freshwater?
They are freshwater fish.
Do fish produce hydrogen as a waste product?
Yes, fish do not produce hydrogen gas as a waste product. Fish excrete ammonia, which is converted to less toxic substances like urea or uric acid depending on the species. Hydrogen gas is not a typical waste product of fish metabolism.
Is a betta fish saltwater or freshwater fish?
Redfish are fresh water
Are piranha's freshwater fish or salt water fish?
Piranhas are freshwater fish, living in the Amazon basin.Actually they are both freshwater and salt.... Mostly freshwater though!
What is a tetra hexacontagon?
A type of Freshwater Fish
Does snakehead fish live in freshwater?
Yes Snakeheads are freshwater fish.
Do freshwater fish need some kind of salt?
Freshwater fish derive small amounts of salt from their freshwater habitat. If you place a freshwater fish in saltwater, the difference in habitat will cause the fish to burst.
Why are some fish saltwater fish and others freshwater fish?
Because saltwater fish can only breathe in saltwater (as in the ocean) and freshwater fish can only breathe in freshwater (as in tap water.)
What is name of tiny freshwater fish?
the name of a tiny freshwater fish is a minnow
