What mediums can be used for HYDRO?

Just like the title say, i was wondering what mediums can be used for Hydro besides those Hydroton rocks? My local hydro store is all out until about next monday and i'm trying to get my setup up and running today. Thanks in advance.

If its a small op and you don't mind disposing of your medium after each harvest then a fytocell or perlite is good. It is sold in a big and chunky variety at my local shop and is a similar size to hydroton or you can use the small stuff but should put some rockwoll flock in the bottom of the pots so it doesnt float out.

rockwool..............

I got some rockwool but don't i need some rocks or something too. Someone told me not to use lava rocks. Not sure why though.

clovergs99 said:

I got some rockwool but don't i need some rocks or something too. Someone told me not to use lava rocks. Not sure why though.

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Well, I'm telling you that you can use them..... because they work.

Cool, i'm out the door to go swoop them. Peace

clovergs99 said:

Cool, i'm out the door to go swoop them. Peace

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Don't forget to rinse before you use. Dude that told you not to use them probably didn't rinse.

OK. Hey also should i replace the rocks everytime i change the rez or just rinse them and reuse?

clovergs99 said:

OK. Hey also should i replace the rocks everytime i change the rez or just rinse them and reuse?

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Sterilize the rocks between crops with a 10% bleach solution. Don't mess with them while there are plants growing in them.

you don't need anything else if you have rockwool cubes and the slabs. just start in the 1" cubes, into the 8" and those on slabs. supports entire grow. Leave the plastic on the rockwool.

You only have to buy lava rocks once.

earlymorninstonepeomp said:

you don't need anything else if you have rockwool cubes and the slabs. just start in the 1" cubes, into the 8" and those on slabs. supports entire grow. Leave the plastic on the rockwool.

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My rockwool did not come with the plastic on it. Not sure what a slab is as far as a hydro setup goes.

Are your rock wool cubes just wool cubs with nothing around the sides of them at all? Are these just regular cube shaped rockwool?

Bullethead21 said:

Are your rock wool cubes just wool cubs with nothing around the sides of them at all? Are these just regular cube shaped rockwool?

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When i got them from the hydro store they were all connected in rows of 5, so i took a knife and cut them into individual cubes beause i was only doing 6 plants for my soil grow. So i ended up having like 19 extras and then i figured i would try and make a Bubbleponics just for experimentation which is were i'm at now.