I've recently inherited a 100 gallon tank, and I am interested in keeping oscars.

I have other tanks and so I am able to juggle some of the fish around a little, but the tank currently has a sail-fin plec, several clown loaches, 2 ellioti (similar to firemouths), a silver shark (about 10"), a severum, a couple of synos and 2 festivums. Does anyone know if an oscar would be ok in this tank? I am most concerned about the festivums being too timid and the silver shark.

thanks

wow that a lot of fish for 100 gallon. 1 oscar needs 55 gallons so thats over half your tank capacity. maybe if you rehome some of the other fish.
what kind of filtration do you have? oscars can be quite messy.

if you want to put an oscar in that tank i think you will have to move the festivums and probably rehome the pleco if its a common or sailfin. if the silver shark you have is a bala then it should be fine with an oscars.

the ellioti might be ok with an o but you should keep an eye on things when the oscar gets to be big enough to eat them.

and for the clown loaches as long as are not bite size to the oscar you will be good with them.

or if you give little importance to those other fishes, yes, you can put an o there
and consumed them all except for the plecs.....but that is not fair to the other
fishes.....and we do not encourage that....

if you want to add an oscar only add one cause a pair of oscars is bad theyll fight when ther older but if you add an oscar only add a small cause cause i found any fish that grow up togother usialy work out