Fish for sand turnover in agressive tank
I have recently gone through 3 diamond gobies. I had one months ago and have been wanting another one since he died. In the tank with him is: Dwarf Lionfish (5"), Porcupine puffer (6-7") Yellow tang (4"), and a dwarf golden eel. No one ever bothered the first goby I had. I attribute this to the fact that he was the first fish in and the other fish were smaller.
The first replacement goby was too small and I think he became an expensive meal for my Lion. The second goby was bigger and I thought that "He's too big for the lion." The next day he was missing and I feel he met the same fate. The third was as big as you can buy in the store. He lasted 4 days (with the lion constantly lurking over his cave) until I came home to a dead goby (not eaten this time).
So I now accept the fact that I cannot have another diamond goby which I am going to miss. The goby made a mess, but kept my sand turned over and spotless. I have 20-25 snails and about 20 hermits to keep the sand "clean" but I want something to turn the sand over and push it around. I don't mind smoothing out the piles once a week when I do water changes.
I'm thinking about a dragon wrasse. I know they are a little tougher, but will they push the sand around?