It appears that you are killing the plant with nutes.

Whatever it is you are using, stop.

The ONLY nute you should be adding at 30 days is some nitrogen in the form of Bat Guano or pehaps some fish emulsion.

If your soil is any good, you dont need to add any other nutes until you switch to flower stage. And unless your nutes are made specifically for dirt grown tomatos, use one half / one quarter strength.
HARDDON Reviewed by HARDDON on . Leaf issue Hello there, please have a look at the attached picture. Somehow it appears as if in the middle of the leaf, something is "eating" the green..heh. I can't see anything particular with a 30x micro, and I may just be too paranoid since only having 2 plants which are not sexed yet, but does anyone know what it could be? Temp is usually around 25 - 26C, humidity of around 48%. Can't be the lights, because the other plant in the same pot is doing perfectly fine. So, it's not PH then Rating: 5