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Solved my root slime & slow growth nightmare cheap UV sterilizer did it

Joined
Jun 10, 2025
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Hey everyone! I just wanted to share something that might help some of you out there. I was really struggling with that dreaded root slime and the slow growth cycle in my hydro setup. I mean, I tried everything, got the temps just right, balanced the pH, experimented with root treatments, even used distilled water. But honestly? Nothing seemed to make a difference.

Just when I was about to throw in the towel, I decided to give a cheap UV pond sterilizer a shot. And wow, what a game changer. My root growth exploded, the slime disappeared, and I was even able to use basic coco nutes without stressing over pH levels. I definitely think it's worth a try.
 
Nice, and great tip!!
Where did you get your UV pond sterilizer and which brand?
It isn't something everyone thinks of, but it makes a lot of sense for tackling waterborne issues!
 
Thanks! I picked up my UV pond sterilizer from TotalPond at Home Depot, and it's been performing really well for the price. It's done a great job keeping algae and bacteria under control in my setup.

Which model are you considering?
 
Thanks for that, I've not had that problem yet but it's something that concerns me, I live in a hot place so my buried reservoir temperature ranges between 26-28c, I'm looking into solutions for that but am also about to build another rig which can't have a buried tank, so it can only get worse !

I'm aware that the excess temperature makes me more vulnerable to rotting and the like, I can pick up a UV aquarium sterilizer here for the equivalent of 3 quid, so have just ordered a pair.
 

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