Anyone have any experience with using a large shrimp such as the type you eat or use for bait to help cycle a tank, or even leave in a tank after that. I put two large shrimp in my tank help cycle- left over bait from my dock. I got a bloom of brown algae over the weekend because I had something come up quickly and had to leave town right away, without turning lights off (need timer will have today). My 2 shrimp burrow in the sand during the day, but when I turned off the light last night, one came out molted and ate almost all the diatoms off the sand and they both do excellent moving the sand around. Any down falls with leaving them in there? I only have live rock now will be adding coral and fish shortly. I only put fish in I catch myself and the weather as been cold and rough for diving. But I will be in the bahamas in 2 weeks to catch a few fish. Will be buying small pieces of coral shortly. Thanks