I'm on very clean well water as well but still use the BRS RODI system to make water. I was thinking of maybe dosing with that NoPox from red Sea to see if that helps lower them. My diatoms are getting uglier and would like a Clean up Crew too but these high nitrates are stopping me from doing so. I was thinking of picking up some chaeto for the sump to see if that helps bring them down.
But these water changes with no effect is getting old.
But these water changes with no effect is getting old.