Dano's are fin nippers I wouldn't put the Betta's in with them. As for water circulation, as long as it is gentle I don't see a problem.
Your tank is pretty. We just took down our 90 gallon one. It was empty and we just let it go. I needed the room anyway. Enjoy your fish. Watching them is very relaxing.
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timeasmymeasure
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Date: 2008-04-22 03:15 am (UTC)Your tank is pretty. We just took down our 90 gallon one. It was empty and we just let it go. I needed the room anyway. Enjoy your fish. Watching them is very relaxing.