Hi guys I cycles my tank as you know. It has been running for a month. The diatoms bloomed in my cycling and went away. Now I have it again with an eel in the tank. I have a couple snails but they aren't cleaning up enough. Should I get more snails? How can I get rid of it with out removing anything?
What are the parameters in the tank? Diatoms feed off of silicates in the sand and rock and go away when they are consumed. For them to come back again makes me think that you are seeing the start of cyanobacteria rather than diatoms.
Like has been said already, Diatoms feed off silicates. What kind of water are you using? If you are not using RODI, this could be a source of silicates. I had a conch which really helped sift the sandbed and keep it clean.