I've got a fish tank, big enough for three plants. If I get an mdf board, place it over the top, drill three holes large enough to house rockwool cubes, then other holes for air and to add feed. Does anyone think this would work?

I'm going to experiment with it anyway... I'd just like to get some tips, because as soon as a clone becomes available I'm going to kick it off. Any advice will be gratefully received... even if it's to tell me I'm a complete cunt for even thinking of such a stupid idea.

You could model it after a bubbler setup but you will NEED to be aerating the water. Get a bubble stone and air pump and put that in fish tank water. Then it will bubble up and hit roots. I might do the same thing with a 10 gallon fish tank for clones.

sounds like a great plan!!! I may consider doing this also. How far away from the bottom of the net pots should the water be? What size do you plan on using? I have a few 10 gallon tanks and 1 20 gallon long sitting around

Not sure of the size, although three plants should fit quite comfortably. Bubbles? I assumed the tips of the roots travelled till they touched the water at the bottom... I thought you just kept spraying the rockwool until the tap root found the water at the bottom.

See how clueless I am?

if im not mistaken mdf is pine. and any kind of pine products are a nono. the sap (pine reisen) from pine products will kill your babies.
and for the fish tanks, you can use'um. but be sure to paint the outside of it first. you dont want light on your roots or the water.
im useing a bubbler setup now, and found that the plants seemed happiest when the water was about even with the rockwool until the plants had roots comeing out of the net pots. once they had a decent amount of root hanging out of the pots i droped the water level to about 1" under the pots.
good luck n keep us posted

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fdd2blk she said she wanted 12 inches, so i gave her 4 three times.
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What did you end up using instead of MDF? I was going to point out that pressed wood products are bad around water anyway but was thinking it could be sealed with several coats of varnish. I know that Lowe's and Dept sell those clear plastic sheets (not sure of technical term) but they could be cut to fit plants and tank. Other solution is to get the reptile lids for tanks that are screen then just cut the screen to allow pots in and then cover with plastic or something reflective.

Thanks a lot mightyb' and th3... loads of good advice. Unfortunately I've already bought the mdf. We've got a pump, just waiting to pick it up. So I'll paint the outside of the fishtank. I'll cover the mdf with plastic, although we do have a cover for the fish tank, a metal one. I suppose we could drill through it. Thanks a lot lads.

Also, what are net pots? Could I get away with just cutting the holes large enough to hold the rockwool cubes? Would the weight of the roots pull the rockwool through the hole? Wouldn't a net restrict root growth?

I'm hoping to be starting this by the end of the week, just 2 plants. A couple of the sensi stars I've cloned look like they'll make great plants.

well if youve bought the mdf and are set on useing it more power to ya. let me know how things work out with it. but if it doesnt work out or you just wanna try something else you might want to get some rubber made tubs. thats what ive been useing and seem perfect so far. ill toss a few pics in of what it looks like setup and what net pots are.
for the setup like ive got youll need

5.00 rubber made tub(bigger the better ive got 25 gallon)
6.00 air pump
5.00 2x12" air stones
2.00 air lines
1.00 air line T's
10.00 hydroton (clay balls)
2.00 for 10 net pots
10.00 rockwool (100 2'x2' squares)

40.00ish give or take and ive got 6 plants in each tub, and that will take them though a full grow. anywhoo just food for thought.
good luck and keep us posted

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fdd2blk she said she wanted 12 inches, so i gave her 4 three times.
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Thanks again, I'll have to get some of those net pots.

Net pots are one convenient way, but they don't work very well. What you need is a good way to anchor the plants. Once they get bigger they can easily topple. Since you are making it, maybe plan on using bigger rockwool cubes, say 4 inch, and cut a hole just smaller so you can jam the cube into it tightly.

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