Stocking a C.A.R.E.S Tank

I am planning on starting two C.A.R.E.S tanks as my way of giving back to the hobby. C.A.R.E.S. is the term used for highly endangered or extinct in the wild fish. Anyway, I plan to set one tank up of Skiffia Francesae and wanted to know what other central american fish may be compatable? I plan on adding 8-10 female Least Killies and a male or two to create a natural live food chain in the environment. I know they can not hybredtize and have a tiny bioload. I am planning to use a 55gal, so I'll have a lot of room. I have worked with a number of different Goodieds over the years and find they become a little to hyper aggressive when kept in a single species tank. So please help me out here if you can.

If anyone else is interested, let me know as maybe we can work together. I really think this could become a new section, that is the least we can do.

Thanks for all the replies.

I have worked with Goodieds starting back in the 1980s. Since that time several types have become extinct in the wild and the majority are endangered. I have targeted the Skiffia Francesae as they don't seem to be responding to attempts to reintroduce them into what little is left of the native habitat. They are one of the least attractive of the group and I wanted to see if I could add another small C.A.R.E.S. fish to double the impact and get curb appeal. I have checked with my local aquarium society and there is no organizaed effort, although several members are working on such projects independently.

One thing a lot of folks don't know is Goodieds, most at least, make great dither fish for smaller cichlids. Several of the cichlids from the same areas are in the same status as the Goodieds. Goodieds are larger and more aggressive than domesticated livebeaers. They breed differently and fry are large.

My reason for suggesting, besides the obvious, if folks would be interested is in starting a subgroup / section / thread would be to establish a base of individuals to help breed and distribute the off spring. I was thinking on dedicating a kiddie pool to one species next summer and that could produce 100-150 fish. I would likely give them away if people are serious about the cause. So, any feedback would be greatly appreciated.