What will eat diatoms?
Add diatom-eating snails
So, what eats diatoms? Snails! Nerite, Cerith and Trochus snails are all known to eat diatoms.
How do you get rid of diatoms fast?
To get a grip on diatoms, you only have to remove the building structure, the silicic acid (silicates). Put a bag of JBL SilicatEx Rapid in your filter and the diatoms will recede and disappear completely after a short time.