Hey Growmie, I also use advanced nutrients, but am using soil. When I mix my solution, and thereās some left over in the pail, thatās what I see after a day or two of it sitting. Little brown floaters that look like fish food⦠obviously not a solution that can be kept for very long. I donāt think itās specific to you, adjust how long your solution is kept in reserve and see if it changes. Good luck Growmie ā¤ļøšØš¦š