Bob at bluecrayfish.com is really great. A few weeks ago I purchased 3 immunis from him (1 female, 2 males) for $15 + shipping. The two males died unexpectedly after molting. Bob replaced them with 3 alleni (1 female, 2 males) which arrived yesterday. Since the surviving female immunis is considerably bigger than the new alleni, I have them set up in two 10 gallons, with airstones and filters. The immunis has a mixed white gravel and large pebble substrate, with 1 large holey rock for a "cave" and 1 "tent" made of a large flat stone perched against another. The smaller alleni are in a tank with a tahitian sand substrate and 3 small holey rocks for caves. I intially planted about 6 anubias and crypts in the immunis tank, but between the original 3 crays, all plants were uprooted. When I find an LFS with the supplies, I intended to pick up some floating plants! There is also a small school of white clouds in that tank. There were 6, this morning there were 5, and the immunis was munching on a tasty snack! I think she has just gotten a little bigger and a bit more agressive. I'm planning on switching out the crays so the smaller guys are with the white clouds. Maybe I'll pick up some other fish to go with the immunis. Anyone have suggestions on a cold tolerant (down to 72 degrees) fish that'll reach maybe 3 or 4 inches?
Oh, I feed the crays shrimp pellets once a day...
...and the occasional white cloud, apparently!