Originally Posted by jr1053
Does an invertibrate "cleanup crew" consisting of largely hermit crabs, starfish, and shrimp add to a tanks bioload and effect the level of tank polutants and ammonia? At what rate can these be safely added to a tank?? Thanks for your input.
John
crabs and shrimp and starfish should not add enough to your bioload to cause any negative effects unless your adding hundreds of them. how old is your tank, starfish need well established tanks to make sure there is sufficient algae growth to maintain a healthy diet