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Mine is 5.5 - 5.8. Its perfect as needs no adjustment after nutrients are added. Chris

Today as posted in grow tech NFT Roots

Not much growth but I presume they are settling in. Reduced irrigation to one per day as the rockwool isn't drying out much and I am probably slowing root growth. Had to remove leaves from both the scorpions due to some fungal issues but given them a copper spray and they seem good now. No probs...

What irrigation times are you using? Chris

Are the meters both calibrated correctly? If so are your meters converting from ppm using the 2 different scales? Chris

Mine is going great guns now. (right)

Oops - double post

It certainly does:

Never is your answer. I use rain water which comes out at ph 5.5 - 5.8. After nutrients it sits at ph 6. This is why its important to wash and soak your clay as it will push up your ph. Another point to make is rain water is sub 0.1 ec Chris

Best of luck. For me this is a hobby but a business needs to be thought out well. Chris

Hi Shameal. The spots seem to be printed on the leaf. If you look on the underside only a few specs of dark are visable. I have removed infected leaves and will be keeping an eye on the rest. Chris

Anybody? Chris

Hi mike. I think DI has to be one of the most risky methods against mechanical failures. The plants are in a 3" rockwool cube which needs to remain at least damp all the time. The pump however is a reliable model and is brand new - crossing fingers that it holds out. I have never grown in DWC...

Hi people. Have a little problem. Only affecting one plant. Spreading from new growth down. Removed around 4 leaves so far. Leaves started crinkled then went like this:

I have previously posted the build pictures of this system so I thought that I would start a grow log devoted to it. There are 2 plants left to go in but they aren't ready yet. 1. Trinidad Scorpion Yellow CARDI 2. Pimenta De Neyde 3. Pimenta Morango 4. Infinity 5. 7 Pot Brain Strain 6. Trinidad...

Poor picture but my progress:

Cheers SS. So Today - 4 days after the PDN being 12" tall, has grown to 18". I transplanted them out to my drip system. After so major shock (heat/ light/ transplant?) they are now on the mend. Not a brilliant picture but... The spaces left are for 2 that are no where near ready yet. A...

Hey nice set up. Just saw your ebb and flow that you posted in another thread. Just a quick tip - cut your overflow pipe down on the underside. This will cause splashing as the excess is returned.This helps put oxygen into your solution which stops stagnation. I use GHE nutes by the way. Just...

They are begging to be transplanted now! The Pimenta De neyde is 12" tall. Chris

Hope it works out for you Hinky. Best of luck!