Originally Posted by Zephyr
Ya know... I've got a second idea.
Convicts are readily available, and I've personally had experience with them being prolific.
Doesn't it sound easy to setup a 10 gallon unheated tank with a minor type of filtration and breed convict cichlids for food? I've never heard of them containing thiaminase.

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Well, convict cichlids are known as the "rabbits" of fish breeding, but they will need more than 10 gallons to live & breed comfortably. They are very aggressive, and need space to get away from each other & adults can get 6"-8", and 10 gallons won't be big enough. Most people recommend 25-29 gallons as the minimum for just the pair. And they really should have a heater, they prefer temps around 70-80°F. I was a member of a fish forum for a couple years, and read quite a bit about these guys. I hope this helps.