Well, there's a plan B. Get a bigger tank! A 40G would work well I think.
On the other hand, some plants, and 3-4 additional white clouds would make a lovely and easy to maintain tank if you'd take the fantail back.
My 33 gallon/125 liter tank. My photography on flickr.
We can supply especially aquarium decoration,
rocks, sands, seashore and seashore powder. For
any in ...
We supply live Arowana fishes of all kinds, we
Red Asian Arowana,
jardini Arowan ...