I have the J&L's 50-60gal custodian package in my 55. I am running tap water for now and have had no problems with algae. They keep it spotless. The blue hermits are by far the best cleaners in the tank. They do kill each other from time to time. They will kill a snail if given the chance-ie; a turbo falls on it's back. The certh snails are very tough against them as they have a trap door on their shells. I don't think they are causing any negative effects to my sand bed. If anything, they eat any leftover food & mix the top laver. I also have tonnes of pods in the tank. I also have an emerald crab the eat any macro that sprouts up. Seems to work for me.
Shaun.
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