How do, Ive been switching fish and tanks for a while and just settled on a 73 Gal tank I bought for £10...roughly $6.00! Now my question is....is 73 Gal ok for an oscar, a Gibbiceps Plec and a Synodontis Angelicus? Ive got the last two waiting in other tanks while my water matures...if the tanks ok I was going to go get an albino Oscar at the weekend...what do you think???