Alternatives to Hydroton in DWC

Looking to start a couple clones in DWC have plants growing in soil and time to experiment with a few plants in hydro but looking for alternatives to using hydroton? Would a course fish tank gravel do the trick?

Perlite or any gravel rock that has no contents as for high volume of calcium in the rocks should work just fine .

Certain types of lava rock.


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one thing I’ve noticed about Hydroton is that with its clay coating it tends to to help wick the water up thru the pebbles quite well … may i ask why you would use some thing else ?? I’ve used it for years .quality’s are wicks well can be cleaned in hot vinegar , baked in an oven to sterilize, can be sterilized using strong peroxide solution ,very little loss at cropping .

the mess of the powdery clay lmao I grabbed a bag and aam quite happy with it but also was looking for cost effective alternatives too since it’s always good to have plan b my local hydro shop tends to only ever have 1-2 bags on stock so usualy have to order in