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I love growstones. I used them as a soil additive but they can also be used as a hydro substrate. They don't roll, they are a fraction of the weight of hydroton, and way more absorbant and porous.
outwest
http://www.growstone.com/hydroponic-substrate/
washed red lava rock. 3/8"
from the building supply store.
Soak in 10% bleach solution in large trashcan. DRain. Rinse.
Cheap. 7 bucks for a 50# bag. Put it in the landfill or the garden when you are done.
washed red lava rock. 3/8"
from the building supply store.
Soak in 10% bleach solution in large trashcan. DRain. Rinse.
Cheap. 7 bucks for a 50# bag. Put it in the landfill or the garden when you are done.
im thinking about trying some growstones this run in the UC.
that washed red lava rock sounds like a perfect replacement for the hydroton i put in the bottom of the coco pots. good lookin out Cap.
how long of a bleach soak are we talking? do you soak in regular water after or just rinse them off?
bleach is good for everything. They use it at the greenhouse at my old school to disinfect. It's safe for the plants, even if the lava smells a tad bleachy.
I soak for like a minute or two. I dump it in a trach can and swirl it around. Then I use a plastic pasta strainer to scoop it out and rinse it wish a hose. I have a yard though, this would not be as easy if you lived in a small apartment.
bleach is good for everything. They use it at the greenhouse at my old school to disinfect. It's safe for the plants, even if the lava smells a tad bleachy.
I soak for like a minute or two. I dump it in a trach can and swirl it around. Then I use a plastic pasta strainer to scoop it out and rinse it wish a hose. I have a yard though, this would not be as easy if you lived in a small apartment.
EXACTLY what I was looking for! Thank you so much.
Also, anyone use pumice stone? I can get that for free...
where do u get pumice for free? i think it would make a great alternative. really lighteight and porous. but it floats like perlite which i find annoying.
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