Yea it is and yes you can but there is no guarantee. You must run a live or sterile system... I prefer live and this cure is for a live system.
I run my hydro 72-74f it's not the water temps. That's absolutely BS bioscience. Follow the root rot thread and you will have a good chance of beating it. Make sure you are top feeding a cup or 2 a week to ensure contact of hydrogaurd with all of the roots.I clean everything and added hydroguard and some cal mag earlier today it can possibly be the water temp I check them and it was 72 here a updat View attachment 1135373 View attachment 1135372 View attachment 1135371 View attachment 1135370 View attachment 1135369 View attachment 1135368 View attachment 1135367
So should I stop the top feed until I fix the problem i top feed them 2 times a day for 5 minutes
That's up to you bro... you don't want light getting to the res though.