Good morning. Once my new 65 gallon finishes its cycle, I've read that you should then introduce your clean up crew. If no algae or Diatoms are present, what are they going to clean up or eat? With just snails and hermit crabs, is that enough of a bio-load? I'm using the shrimp method and they are slowly decomposing, so figured on just leaving them to supply a food source for bacteria.