Heisenberg, before I reported a snot-like substance in my pumps.
I have a 3x3 Ebb and Flow table, 40 gallon rez, GH Flora, 29% H2O2 added @ 5ml/gal every 3-5 days.
Now, the color of the substance has changed to a light yellowish color.
I have included some pics. Any information you...