I would say you are over feeding and possibly not enough air to roots. Less is more with DWC in terms of nutrients. Also if you are using hard water ( 300ppm or higher) then cal mag is the last thing you want to add.
Basically nobody wants to hear this but your tap water is contaminated with excess calcium so any additional nutrients that you add will more than likely give you nutrient lock! Which will leave you with crap yields and wasted time and money. Find a local aquarium shop and they will sell u Reverse osmosis water. 00ppm and then you will see the results.
But to be fair it’s all a massive learning curve and you will get the hang of it the more you start to read your plants and what they want and don’t want. Watch some garden sage videos on YouTube. He’s my guy. Also The grateful grower. (Jim Carey if he grew dank) 😂👍👍👍
likes 4