Green water, few yellow leaves, check my pics>>

2 of my plants are about 2.5 weeks old. The leaves are going yellow.

Im feeding them vitalink plant start as ive just stuck 2 new ones in.

The spreader mat has turned green along with my res.

What is my problem?

looks like an algae problem!

What caused it, how do I correct?

thanks for the reply.

Ive blocked light to the lower and tray.

It looks like you have a major Algae problem. From the picture it looks like its all in your roots. Algae can form if light gets onto your water, if the Ph is too basic, if the water temp (in my case) gets above 70 deg F. People can put hydrogen peroxide in their water and it can help disinfect. I put about 1 teaspoon per gal. You can also buy products made to protect roots. I'd def take some clones to ensure the plant lives on. You might want to choose a different system. Sorry

SAPFO said:

Ive blocked light to the lower and tray.

Click to expand...

Blocking the light should help, but be careful not to block oxygen from the water/roots

You can remove it manually. Skim it/scrub it off

Algae isn't harmful

Im going to have a scrape 2mo. i already cleaned out the res & covered the tray etc. Anything I can add to kill it?

So it wont affect the plants then?

So the yellow leaves...what could that be?

SAPFO said:

Im going to have a scrape 2mo. i already cleaned out the res & covered the tray etc. Anything I can add to kill it?

So it wont affect the plants then?

So the yellow leaves...what could that be?

Click to expand...

I would suggest(if you can) removing the plants from their holders and putting them with roots hanging in vases somewhere while you clean out and run some water through your system. you need to run some chlorine bleach through it with the water. Use 1 cup of bleach per 10 cups of water, and run it through your system for 5-10 minutes. Empty out, run clean water through for 15-20 minutes. you should be ready to put the plants back in!

note: you may also want to wait till your system dries, then run more clean water through it again. it is just a safety precaution to take, in case any untamed chemicals creep out of your system while it's drying, this way you will rid of them before they start the algae problem all over again

They are in rockwool which is now attached to ther spreader mat via the roots. How do I get around that?

Also im away for 7 days from monday, will they flop?