That won't fix it......I swear i'm going to pop you. Now if you listen to ME instead of someone else who doesn't even know you we can get you going or we can fool around with all this silliness and wasted time.

What are you using to drop the ph? Ph down? Pour a BUNCH of it in there......ph it to about 4 for a day or two. You have to check and adjust it twice a day. Stir the stuff and keep it mixed. Or go buy some vermeculite or higromite.

PLEASE PLEASE STOP GETTING INFO FROM A BUNCH OF OTHER PEOPLE at least without asking if it might be a good idea or not or I'm pretty sure we are just going to have one problem after another here and another long long grow.

I think you'd have been better off putting the seedling in your set up (as suggested hint hint) than leaving it in the bubbler as was not suggested hint hint. Despite the fact that your hydroton isn't ready it would have been better to work around that issue imo.

PS.....there's no chlorine in RO water and still hydroton issues so that doesn't sound like an answer to me.

:wtf: