Well, I've thought about it long and hard and I've decided that I want to keep a pair of dwarf pikes. I think I have settled on Crenicichla Regani over Notophthalmus because of the larger size and availability. Anyway, I would really like to create a biotope but I can't find specific enough information on where they come from to figure out which fish to keep with them. I would like one or two schools of tetra and maybe a cleanup crew. I've also though about adding one or two more fish to the mix just to keep things interesting. I plan on housing them in a 55g. Any advice on keeping these fish or suggestions as to which fish would work the best and be the most authentic would be greatly appreciated. Thanks.