Originally Posted by CleverBs
I have never had a tank with all 0's you always have nitrates thats why water changes are needed.
A tank with enough liverock that isn't overstocked will have 0 nitrates. Mine has been 0 for almost a year now.
If your showing no signs of ammonia and nitrates, you should be good for hermits and snails. If your looking to get a bunch, reefcleaners offers packs at a good price. Try to keep nitrates low. If it doesn't go to 0 eventually, you might need more LR