08-21-2010, 11:16 PM
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i dont think you should touch the sand, atleast not yet and if you do, i would take it down to more like 1 inch, not 2. you want less then 1 inch OR 4 - 6 inches. 2-3 inches seems to trap debris. the rock in the sump may be trapping debris as well, since this is a slow flowing area. you may be better off putting it all in your main display.
i would continue with water changes. what is your actually amm reading? what about other params?
i to, wonder why you ran this as it seems like your tank is setup nicely. there should be no need for additional biofiltration besides plenty of live rock, other things like canister filters, floss, catch debris and allow them to break down. you dont want that on a saltwater tank. i dont understand why you'd have such high amm. readings anyways unless the tank was farely new.
i dont know if adding hermits would do much of anything, if not hurt things. inverts esp. dont like amm, nitrite or high nitrates. may or may not kill them, which would just raise these levels even more.
maybe up your water changes to x2 a week if thats possible.
anyways, welcome to the forum.