I’ve only been feeding with 1 tbsp urb, And .5ml of mammoth P. I flushed yesterday put 20 gal of ro water and after 18 gal of ro water I used 2 gal with 1/2 tbsp of urb, .25ml mammoth P, 1/2 tbsp of liquid seaweed, and 1/2 tbsp of molasses. I believe that they have a phosphorus deficiency. Kinda...