03-21-2010, 12:28 PM
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yes most do. There are very picky things like neons that are all generally bred with hormones in the fish farms. Other than a few, most tetras will spawn easily in a aquarium, though they can be a little pick about water parameters when you are talking about spawning. The young usually need to be seperated from parents while they are still eggs, the bast way is to take the parents out after they have spawned so the tank is empty. Young need lots of live food, usually multiple kinds as they grow. Like when I raised rainbow fish I went vinegar eels, microworms, then grindal worms. All these need to be cultured and it can be quite a bit of work.