Its kinda hard to see this picture, but its the best camera i have available. I have 2 girls in a 10 gal DWC. Only one is developing these yellow spots in the middle of 3 of the fan leaves. Any suggestions?
Hard to tell from pic,but more than likely its PH. I c rockwool and clays balls and there should b little or no nute's,,DWC with this growing style can sum times cause the PH to drift alot. Make sure balls are rinsed and cleaned good before use,,,rockwool should atleast b soak in a low PH'd water for a couple of hour's. and with little or no nutes and wat myb a 5gal rez,,PH can b a real problem @ the start. Just sum thought