07-07-2011, 06:46 PM
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The idea for a group of angels is to provide them what nature intended for them, nothing more. They are shoaling fish. They will therefore be less stressed in a group, and a 55g is minimum for 5-6. Having said that, if one want to specifically breed angels, then a pair (mated) is fine. The fish will continually spawn and be happy. And a 36g can accommodate that. But the optimum word is "mated." Two male angels in a 36g is almost certain to result in one live fish and one very dead fish. They are territorial as are all cichlids. And gourami too.
But Honey Gourami are a bit easier, and in a 36g a group would be best. Males are still Territorial and can get rough, but in a group this is spread out and you should aim for female/male ratio, maybe 2 males to 3 females.
Leaf fish was already mentioned, it is in our profiles under Leopard Ctenopoma, or scientifically Ctenopoma acutirostre which, although there are other species, is pertinent for its care and habits. It needs a 55g tank with carefully selected tankmates as noted therein.
Panda tetra. Not a recommended community fish ever. For its tiny size, this is one mean fish. I have twice tried them, and unless they can be in their own tank, forget it. They will bully other fish in the tank and you will have diseased fish. When I was researching their fish profile, I came across more warnings and "never get these" comments than I think I ever have with all of the fish I've profiled. They are here under Dawn Tetra [the more "common" common name].
On the filter, as has been mentioned, select the filter for the type of habitat you intend, which means suitable for the fish to be kept. Different fish need different environments, including water movement, so know the fish then select the tank and equipment. For example, a canister would be preferable for the various fish mentioned.
I tend to find that "packages" have equipment I don't want, or it is less than high quality. Aside from the filter, cheap heaters for instance can suddenly fail overnight and either cook or chill the fish with total losses; worth spending more for a good quality heater.
Hope this helps a bit.