When I finally do my BIG tank of 2500 gallons or so (doubtlessly years away, but still) I fully intend for it to be one of the 3/4 round grotto aquariums from Dolphin Aquaculture. They have 12' and 15' tanks with an 8' viewing window. I'm liking the idea of a 12' tank with an overflow right in the middle and the return on the wall to create a whirlpool. Then I'd have a few Koralia 8s around the edge to help the flow if need be. This would give a river style tank with rounded edges to help preserve my big cats' noses. Plus, if I move back to Georgia, I can have ATF again and a big circle would be ideal for them as well.
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