I am beginning to understand what is meant by 'centerpiece' fish. we will be getting a 90g tank the end of sept and were mostly just going to still with freshwater community like we have in the 60. I thought about trying to 'rescue' a sailfin pleco from no hiding, no wood, overfed, 29g tank but it shows sailfins need 120g! so he wouldn't even fit in the 90 ( plus, if he is that stunted, is he even healthy... would moving him to a bigger tank, even not big enough be better or worse?) we seem to really like catfish as we have corys, otos and 2 kinds of plecos ( smaller ones ) im not sure I want a river monster 24inch common pleco....I don't like the idea of a huge tank for 1 or 2 fish... SOO after all that preamble ramble... any recommendations on a decent sized centerpiece for a 90g freshwater? ps...2 of my boys voted for dragonfish and green puffers,,..they have hi hopes... ok they are delustional...no brackish!