Lime green and droopy

So my ts1000 has only been at just under 3/4 power, I have adjusted it down a little and moved it a few more inches away, I used epsom salts in my flushes as I heard that’s pretty much what the commercially available root flushes are, and as for the setup, typical aquaponics uses just the fish and a media bed, but I am using the dual root zone because the fish alone won’t provide enough nutes for the demand of the plants, so they get mostly water and some nutes from the fish and then I supplement the soil zone with nutrients. I have the soil pretty dry now, so I think I’ll do a nice feeding and go from there

Also, your leafs are really droopy. Idk if that's down to light stress. Having a TS1000 that close. Your not running that at 100% are you? It's too high a ppfd for a vegging plant unless you're enriching your environment with extra co2. You shouldn't have to exceed 75% at 45cm from your canopy through your entire veg. With that light you're to close.

Try give her a dose of Epsom Salt. It will give mag/sulphur. Mag will help with the uptake of NPK which you're having issues with. And sulphur has impact on Chlorophyll. Itll be a great benefit to your grow.. Good Growing