Hi Matt, This is based on my experience and no scientific back up whatsoever. But I do have many Cherry Shrimps in un-heated tank. And it is next to the window in my bedroom and we haven't used the heater yet and I open the window after I get up to air out. I don't even have a reliable thermometer in the tank either. So I don't know for sure how cold it gets but I wouldn't surprise that it get as cold as low 60's. And I think Cherries is hardy bunch. I think they would be fine. It maybe tough to get the small heater for such a small tank but if you can find one maybe it is not bad idea to set to kick in like 70's. Also it would be possible to warm the water from the light. Depends on the light bulbs I guess. And set the light timer to delay several hours so the light would be on part of the night. I wouldn't keep it on all night but say like noon~ 2a.m instead of 8a.m~5p.m or whatever the time you keep the lights on. If I have tiny tank, I would put some tiny frys. Of course, most of them can't live in there forever. For a while I thought about bring the jar of babies ABN, CPD, Cherry Shrimps and maybe some Corys for X'mas gift. Until I found out that no fish for X'mas. Or you can get some endlers or maybe 1 Betta although I never kept with shrimps. Like I said, that is my 2 cents. Matt Staroscik <matt@wrongcrowd.com> wrote: I have a little 1 gal tank at work which is empty save java moss. I was going to put cherry shrimp in there, but the temp gets down to about 63F over night. It looks like the recommended range bottoms out at 65F. Do you shrimp fanciers think they'd be OK? Any other ideas for what to put in there? - Matt _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member --------------------------------- Never miss a thing. Make Yahoo your homepage. _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member