Probably too high of a calcium to magnesium ratio. Too much calcium is an issue. Cut out the cal-mag and see if it improves. If Interveinal chlorosis (magnesium issue) continues, add 1 tsp of Epsom salt per gallon of water to your base nutrients (Canna).

10-11 hours of light in flower and about 16 hours to keep light schedule in veg. Flowering plants are fucked without intense light but you can keep plants vegging under low light for 10-14 days.

It’s ok.

Unless you’re sourcing your water from a pool, you’ll never have to worry about chlorine . Just altering, the pH of the water will cause the chlorine to convert to undetectable levels.

Municipal water levels of chlorine are minuscule compared to pool or spa levels. in many cases, you can knock the chlorine out of suspension just by putting your…

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The loudest plants will need 6-8″ at least. Bigger the better.