And I thought it was going to be easy peezy!
I thought it was just do a test once a week, change the water once a month, la la la. NOPE! After two months of establishing the tank, and all levels testing fine, we bought some critters. One emerald crab and two hermit crabs died. =/ The crab died within minutes, I witness him flailing his arms about helplessly. The hermits' shells were empty by morning and I found one of their tiny bodies on the other side of the tank.
I am currently getting help from a fishy forum, but sadly, I did not do enough research before I bought LIVE ANIMALS.
Did not even get a chance to name them yet.
RIP crabby and lil crabbies.