HCA: Hermit Crab Association

I wasnt able to get the heater, shells or food but i have sme cucumber i can give them tonight if its safe. is it ok if there is still some of the old sand left in the tank? i got like 99% of it

What is the best kind of digital thermometer/hygrometer combo? I have a screen lid for my tank. I'm gonna start getting new stuff after work.

the food i have right now is fluker's premium variety diet and i also have freshwater conditioner from the same company. are those ok to use or should i try to return them and get my money back?

Hi, I am new to crabbing, I just got my tank, supplies and crabs yesterday and am not sure if it is an ok tank or if there is stuff I need to do to improve it. I've already spent about $83-85 on everything. I'm not even sure if i have the right stuff. My largest crab has dug all the stuff out of the...