Health issues with rainbowfish are usually caused by an improper diet. A large proportion should consist of vegetable matter.
Few fishes from Madagascar are available to hobbyists. Bedotia geayi is a species that is colorful, active, easy to maintain, and easy to breed. In fact, I would recommend this fish to a beginning fish breeder for both the ease of inducing spawning and the ease of raising the fry.
Most people have told me Tropheus are a very demanding fish. I disagree; my biggest problem is they are outgrowing the tank.
In a major scientific and technological breakthrough that is likely to have major economic and conservation benefits the aquaculture research team at Mahurangi Technical Institute (MTI) have succeeded in breeding the NZ Shortfin Eel, Anguilla australis.
I hope to put many of the chemical principles behind aquarium keeping into laymen’s terms. For starters: The Stuff That Water’s Made Of: The Molecule, Temperature, Saltwater, and Osmosis.