Mike Maxwell
Active Member
three weeks since cut, all have nice root ball and are reaching at light but every one has new growth with burnt tipps and slightly yellow edges. They are all in rockwool and are being watered with 1/2 strenth 3 part GH and are under the t5 flourescent. the light is about 24" from babies. I had same problem with last cycle but made it through with ok harvest. My water is city and ppm from faucet is 320 so I tried hard water micro but that didnt help. Any ideas will help. Thanx
