It looke like some sort of Goby. Its mailny noctournal and its blind (i think). It runs into EVERYTHING (explans the pop eye). It never swims higher than about 2" above the sand bed. I have had it 2 months and it is doing well. It a peaceful fish and very calm. If anyone can help identify this little guy it would be much appreciated. Oh and its about 5" long. I included a FTS for both my 100 gallon and my 29 gallon eel tanks for fun.