03-20-2013, 08:26 PM #21
An AC20 is a decent filter and a good size for your 10g. You could stuff the filter media from the old filter into the new one if it will fit, but I would run them both for about 4-6 weeks if you have room on the tank.
Some bettas can be kept with other fish and some can't, it depends on the attitude of the betta you buy. I would certainly try it but be prepared in case you get a betta that doesn't like tank mates.
Everything happens for a reason. Sometimes that reason is you are stupid and make bad decisions.
I think my fish is adjusting well to the four gallon, He's laying on his side attempting to go to sleep on the bottom of the gravel.
A moderator on a fish forum should be able to identify an oscar... Don't you think?