Most commonly known in freshwater are the Loricariidae.
Do fish eat algae? Yes, some species, like plecostomus, do eat algae.
Alage
All freshwater fish don't mind alage at all. Many freshwater fish eat alage like plecos, and loaches. Which you can get at almost any pet store.
Algae does not eat any animal or fish. Algae relies on sunlight to grow. =D
Fish poo and Fish food and Fish waste. Sometimes alage. Don't put any more food in for them, they'll just scavenge.
Raccoons eat any species of fish they are able to capture.
It really depends on what species of fish it is. However, there are few (if any) sexually dimorphic algae eaters. you can tell by how big it is.
Some species of turtle eat fish and others do not.
they can both eat all different types of species of fish.
That depends upon species. Some fish only eat algae, some crustacea, or insect larvae. Some eat other fish and some species are omnivorous and eat almost anything.
a frog
Mergansers specialize in fish predation.