I started a different thread about what kind of fish to get- now that I've decided I'll post my questions about them here. I've heard they(comets) can live up to 20 years. Is that right? Comets are usually around 12-18 inches, right? What do you feed them? How much do you feed daily? Can anybody point me to a good filter/oxygenater that would be good for these fish? For the smaller pond showed, would I have to dig a hole and set it in the ground, or sit it on top of the ground? Which would be better? They are pretty freindly, right? I'm sure my 2 year old brother would want to feed them. When will they be big enough to go outside? We'll probably have a shade cloth over it, to protect them from herons, eagles, and heat, but we have other predators, and most pet stores sell them as really little fish. We only have a 20 gallon tank- how long could I keep them in that before they outgrew it? Or would it never be enought room? I'm thinking maybe just two, but if one died, of course we would get another one. Would the one that didn't die not accept the new fish? Would it be happy just getting a new buddy? Or should I get three just in case. Thanks! Sorry for all the questions.