Thanks, I'll try what you've said. I picked up a info sheet for Bio-bizz products from my local hydro and it has a feeding schedule for the plants life cycle on it. I noticed that during the flowering stage I should still be using a small (1 m/l I think?!) amount of bio-grow aswell as the bio-bloom. I switched to bloom only and this might account for the early N deficiency.

My problem with PH is that I got one of those aquatic types which is probably really good and it ranges from Ph 6.2 - 7.4 but I struggle deciding which colour I've got on the chart. If I could find some product that was Ph 6.7 as standard, I could make a test tube up for easier comparison.

Thanks again your royal dankness
Wobster Reviewed by Wobster on . Problem 4 weeks into flower Hi, This plant has featured in these forums a few times. She's a power plant 4 weeks into flower. Growing in soil, PH 6.5. Using bio-bloom ferts. Some leaves, starting at the bottom are going yellow eventually turning completley yellow to a lime greeny sort of colour. I watered 2 days ago with 3 m/l of bio-bloom and a quarter of a tespoon of epsom salts in a liter of good old H2O. I thought it would be an MG problem as the veins on the leaves were still green as the leaf yellowed. I hope to Rating: 5