 Re: Purple Rim Monti Needs Help!
How long have you had this monti? IME montis brown under high phosphates. Are you using a Merck or Colorimeter to measure phos? Salifert and the like simply get you close, but not zero. I second the check the phos level close to the rock as that can be a real source of phos.
Light probably isn't the issue, however, how old are the lights? Are they due? |