I suggest that you wait until the cycle is done. I'm just affraid that they won't be able to stand the spikes. After it's done with the cycle, get some trochus, astrea or even turbo snails, to clean the glass. Get some cleaner shrimps to be doctors for your fishes, and they're scavengers too. I personally don't like hermit crabs, I get sally lightfoot and probably some emerald crabs.
Hope that helps...
stupid_naso