Yeah he messes with the rock work if you watch the video you will see him go up and check out where he is going to dump the next load of sand, Believe it or not there was a nice large cave in the middle he filled in with sand,
If I was to get a pair I would put them in first so they have a chance to find each other and get use to the new tank. I am lucky my lfs
spoils it's customers it is a little mom and pop operation so when I saw the shrimp and it had been there for about a month and the gobies were in the same tank I told them I wanted the shrimp out of that tank instead of out of one that is one of their small holding tanks. It took a little moving around to get it but they were happy to get it for me. they were bagged separate of course but when I fish in first and then shrimp, the fish swam over and the first thing the shrimp did was start touching it with its long feelers. They have been together since Nov. I think it is time I add another fish but trying to find something to fit in that size of aquarium that isn't aggressive is hard. the lfs
usually have chalk bass but they look to much like a tetra to me.
If you get a pair and they act anything like mine you will enjoy them.