So you never do a res change? So I just did my first in the 5 gallon buckets after like 4 weeks, wondering if I should go on a a 2 week change or keep at 4 weeks. What do you think?I guess I should try it one day. When i say I add it only once I left out the details. My res is 30 gallons and i top off with just nutrients and water for 2 months.i dont actually dump any solution, and i have always given hydroguard the recognition for this. A 20 dollar bottle lasts me all year. For one plant its 60ml at the start and then im done. I just know how breeders are with their patents. Its really my cheapest ingredient which is why I see no need to try anything else.
My current rule is to only add nutes once between changes.