Nutrient tank stability issues
Tank is a light proof 30gal or 120ltr tank. Temps pretty stable 70 to 72⁰F or 21 to 22⁰C.
Growing in coco so 2 part quality flower nutes plus a cal/mag additive. I'm week 6 to 7 into flower
Using rainwater. Have only received less than 2" 50mm of rain in the past 3 months but had recent downpours over the past couple of weeks totalling 1 to 2".
I dont run air stones but do have that option. No algae in tank just some minor sediment in the bottom and minor accumulation of salts on the sides above waterline from the evaporative process. Ec of water is zero.
I add my 2 part nutes with vigorous mechanical stirring and then cal mag to bring it to an EC of about 1.6. I have had to pH down lately but not much, from around 6.8 down to 6.2 using citric acid.
I found my pH is climbing up. After 1 day it will go to 6.65. After 4 days up to 7.1. The EC is dropping at the same time. After one day from 1.6 to 1.3.
I am correcting this daily atm but I need a better strategy as I am away from the grow for 4 to 6 days at a time atm and I am at a point in flower where trichomes are beginning to form...a critical period.
Any suggestions please.
Tank is a light proof 30gal or 120ltr tank. Temps pretty stable 70 to 72⁰F or 21 to 22⁰C.
Growing in coco so 2 part quality flower nutes plus a cal/mag additive. I'm week 6 to 7 into flower
Using rainwater. Have only received less than 2" 50mm of rain in the past 3 months but had recent downpours over the past couple of weeks totalling 1 to 2".
I dont run air stones but do have that option. No algae in tank just some minor sediment in the bottom and minor accumulation of salts on the sides above waterline from the evaporative process. Ec of water is zero.
I add my 2 part nutes with vigorous mechanical stirring and then cal mag to bring it to an EC of about 1.6. I have had to pH down lately but not much, from around 6.8 down to 6.2 using citric acid.
I found my pH is climbing up. After 1 day it will go to 6.65. After 4 days up to 7.1. The EC is dropping at the same time. After one day from 1.6 to 1.3.
I am correcting this daily atm but I need a better strategy as I am away from the grow for 4 to 6 days at a time atm and I am at a point in flower where trichomes are beginning to form...a critical period.
Any suggestions please.
Comment