Human... Or predator or bigger fish.
Yes.
No.
A fish eater.
Yes, I have had lots of experience with Oscars. One of mine died recently from a sickness. Algae eater fish are not dominant, in this case the Oscar does not take it as a threat and does not bother it. The answer to your question is yes, an Oscar can live with an algae eater fish.
It depends on what you are calling an "algae eater." A pleco is considered a scaleless fish. A Siamese or Chinese algae eater does have scales.
Starfish eat coral somtimes but i do not now what type of eater they are
Plant eaters are called herbivores.Meat eaters are call carnivores. Both plant and meat eaters are called omnivores.You get that?
it was a plant eater
It depends on what fish you have in the tank!
There used to be a variety called "pogotamus" that was available in pet stores, and it has a suckered mouth, much like suckers and carp. Its an algae-eater and will do well in tanks with no overly-aggressive fish like garpike or pirhanna
I may be able to answer if you define "allergy eater".ANS2:Algae eater, maybe? Sure, they won't bother mollies.
Prasenjit Das.