Our tapp water is soft, (EC 0,06), and I read that soft water contains less then 50 milligrams of calcium per liter and should be supplemented with calcium and magnesium, just thinking to try this. In the past we tryed to boil water, and use water filters, and to change nutrients from Canna Substra to General Hydroponics, but no result. With General Hydroponics it was even worse so I`m back to Canna Substra. For now dont use any bloom boost, using canna zym, rhizotonic and epson salt. Just got a hold of aditional calcium, mag and potasium, from canna. And have pk 13-14 to use in 5 week of flowering.
Changing solution today, will try to add calcium and mag. And I´l change watering schedule. Thanks

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Padde Reviewed by Padde on . HYDRO PROBLEM, HEEEELP!!!!!!! System: Hydroponic, ebb and flow, 40 liters tapp wather. Nutrients canna substra flores. Day temp 26-28 Celzius. Nitgh temp 22-24 C. PH 5,7-6,1. Nutrient temp 22-23 C. Humidity 55-60 %. Ligth 400 hps. EC tryed 1,6-2,0. After 4 days of flowering the problem acured. I thougth it was a nutrient burn, so I took EC down to 1,3 - 1,6 , that did not help. Using magnesium (epson salt). EC of the pure wather is 0,06. Wathering every hour for 5 min, have a sirculating pump in solution. Problem acure Rating: 5