Fish compatibility for 75gal tank?

How big are your bala sharks? You need to remember that you only have so much room to work with. An inch of fish per gallon of water. Where you have barbs you may want to stay in the barb general area. Maybe tiger or rosey barbs. Barbs are very chasey and will shred the fins on your other fish. Also...otto cats are very very small. I would recommend one or 2 med. plecos. They are hardier and will do a better job at keeping your tank clean. But remember you don't need them until you start to see green algae. Email me with any other questions.

Check the online compatibility charts and places like liveaquaria.com.

Also don't always go by the one gallon per inch of fish this doesn't always work with larger fish. The actual size, width and length, comes into play as does the bioload that the fish will create. Those Bala Sharks will get pretty big. As far as tank mates just make sure they are close to the same size and aggression.

Also check about.com on their freshwater aquarium section.

shall we see, your betta, that's the toughest fish you will desire to purchase, and the champion of small tank survival, died. This tells you something appropriate to the tank... If a betta can't stay in it, NO different fish will proceed to exist. Ian

There are some compatibility charts on some websites that sell fish. I think drsfostersmith and others. Do a search "freshwater compatibility chart."

That helps me decide what to/not to get. :)

i wouldnt really add anything else, you are already going on approx 15 fish.,.we had a 50 gallon and our one oscar was taking up the whole tank quite nicely, lol. add some decoration,