I just set up my tank last week, a 28g JBJ HQI Nano Cube. I haven't seen my emerald crab for 5 days now and I am worried it's dead. However, I can't find the body and the parameters are fine, i.e. no ammonia, nitirite, or nitrate. I also live in a loft with LOTS of sun and I have a ton of brown algae already. I have to move the tank to a different spot, but what in the meantime will eat all of this brown algae? I have 10 snails, 10 hermit crabs, and I hope and emerald crab. All of them are very small except for the emerald. Should I get more? I really like the emerald crabs. Thanks for the help.