Cood a betta fend off an oscar?

They do best in water temps of 80ish, so yes heated. Mixing the oscar and betta is just a bad idea to begin with. Don't do it. I hope your getting a 75 for that oscar, its really what they need as adults. 55s don't really cut it, they aren't wide enough.
 
o.... well for maturing im putting him in a 30 gallon and i did say maturing.
 
Well im waiting for the bigger tank to come for the oscar then i will get the betta! u may still use this post as a betta lover page if u have any bettas tell us there names wut do they like doing wut gallon size tank do u have them in, and all tat other funky stuff! Thx for all the advise u guys! (when i get my betta i'll get him on). O ya and try to put a picture of your betta to!
 
AquariaCentral.com