Tiger Oscars

[Zari]

A 90 is good for two oscars, consider some good target fish that can take the oscars aggression towards each other.

75/90gallon is only good for 1 Oscar Minimum, for 2 I'd say 125g+ is good

 

[Iwhoopedbatman]

what are some good target fish??

The weaker of your two Tiger Oscars will do if they stay in a 90 for life. Unless they are a mated pair there is almost no chance of keeping them in there for life. Even if they are a pair, I wouldn't give it a good chance. They get a lot more aggressive with age.

One Oscar in there would be fine. But no tankmates, except maybe a small catfish like a bristlenose, pictus, maybe a spotted raphael.

 

[oscaroo]

2 oscars can live in a 90 if they do not fight and you keep up with the mantence!!!! if you had a 120 gallon tank to upgrade to you could get a school of silve dollars but 2 oscars and mabey a large pleco will max out a 90 gallon!!!! they are probibly not fighting because they are not that aggressive until they reach 7-9 inches it varies depending on the oscar but uassaly it happens beetween 7-9 inches they might be fighting but i think it is a 35/100 thing they are probibly hurtig yhemselves on sharp objects remove the sharp objects and see if the torn skin stops but we really need to see some pics to give you a beter peply and a more acrite reply Good Luck!!!!