Excellent suggestions. . I will have them..
Can you tell me how much number they should be. . Not sure if I will get them at LFS but if I do then 2 each shall do? Or they need to be more?
And any particular type in those you recommend?
Apologies queries but I want to understand from your experience. .
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If you mean how many fish for each of the species that we have been suggesting, it depends somewhat upon the species. Most of these fish mentioned--rainbows, tetra, barbs, as well as others like the danio, rasbora, some catfish--are shoaling fish, meaning that they naturally live in very large groups of hundreds of fish. Nature has programmed this need into the fish, and without sufficient numbers the fish can be very frightened, insecure, and in some species lack the social interaction they need; this causes stress, and stress is the cause of 95% of all fish disease. So keeping fish stress-free as much as we can is very important.
Most shoaling species are best with no fewer than six, but with all of them the more you can accommodate the better they will fare. But keep this in mind when selecting species, and acquiring them. With a 4-foot 100g tank you will have room for a decent-sized group of a species, but obviously be limited in how many species. We can consider more specific numbers when the species are more certain. When acquiring a species, you should try to get all of the number you intend together; in other words, if you decide on the Congo Tetra, and 10-12 would be a good number for your tank, get them at the same time. And a mix of male/female when this can be determined is best because you will observe their natural interactions more.
Angelfish turned up in your last post. This is a different aspect and has to be carefully thought out. Angelfish are sedate fish, meaning they are not active swimmers; they cruise gently around the tank. Boisterous fish swimming frantically all over the tank will unsettle angelfish, so these would not be good tankmates. And some fish will fin nip slower fish.
