Backyard Aquaponics
A place to discuss aquaponics

Dears

i have NFT 16 meters i start it in 20/04/2014 in the first every thing is good .i have swirl filter before the tubes.

but now the palnts stop growing ,and the worst that the tomato roots.is they alive


is that things and colour on them are normal ??

can you explain your system in more detail please?

looks like not enough bio-filtration and/or solids filtration to me?

NFT and DWC need to have water which has very few solids.

here is some pics but there is no bio filter there just swirl one

What are your water temps at? Running NFT or DWC needs cooler water temps to help stave off root rot. Anything over 70F and you can find root rot setting in. I lost a lot of plants in my foray into Hydroponics.

Hydro & Aquaponics might be a little different in that regard.

During the peak of summer, my water temp got to 30C (86F), and it was fine without any rotting.

I'm not sure if the OP is coming back, but it would have been the lack of filtration there, the roots were clogged with solids, and not taking up nutrients/oxygen and suffering.