ok so right now i have have sand and half crushed coral because im in the process of switching out my crushed coral for sand. Can anyone recommend a good clean up crew for my 36 gallon tank? After im done with the sand and let bacteria and stuff repopulate i want to get a clean up crew. also, can anyone give me tips on how to care for them because i tried some hermits and snails in the past and have been unsuccessful. I know you need to drip acclimate for about 2 hours. I have been on top doing weekly water changes to get my nitrates down and I bought a rena filstar filter. I would get a sump but i dont have the space. I no longer have ammonia, nitrate, and nitrite problems like I used to. I have 4 damsels and i dont plan on getting anymore fish, even though my tank is lacking color.