Since I've put the NFT system on the plants have shown some good growth, I'm slightly worried that the leaves seem to be developing a yellowish tint, at the tips and edges. I've heard this could be a few different things, I dont think it's overwatering (since its in the nft system i hope not)

Each of my tanks are 9 gallons, I have a CF reading of 6, a ph of 5.5 and have placed a little oxygen in the tank a few days ago.

Here are some updated pics, any advice will be gratefully received

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KHAN Reviewed by KHAN on . yellow tinting on leaves? Since I've put the NFT system on the plants have shown some good growth, I'm slightly worried that the leaves seem to be developing a yellowish tint, at the tips and edges. I've heard this could be a few different things, I dont think it's overwatering (since its in the nft system i hope not) Each of my tanks are 9 gallons, I have a CF reading of 6, a ph of 5.5 and have placed a little oxygen in the tank a few days ago. Here are some updated pics, any advice will be gratefully received ;) Rating: 5