Moby Dick & Critical Jack (Autopot)

WEEK 5 - 6/3/2021 - 12/3/2021 9/3/2021 - I was away for few days. When I came back, noted all 4 Moby Dick  was stunted and leaves appeared dry. Upon inspecting the res tank, I noticed presence of sludge in the nutrient mix. Removed the tubing and flushed with peroxide, only to discover a long and thick gunk obstructing the tubing. For both plants.  But why? I didn't use any organic nutrients or supplements. Strange. Plant 4 Critical Jack final topping done. So all plants have completed toppings and now it's just LST until flip. 10/3/2021 - Moby Dick plant 2 leaves have completely dried off and it looks like its dying! I think it's because of the peroxide I used to flush. I might have caused root burn stress from the peroxide. But it shouldn't affect the upper roots. I'm hoping it would recover. The Moby Dick Autopots are not filling up the nutrient well. There seems to be more sludge blocking the tubing. I decided to dissemble the whole system and clean of all the gunk for both Moby Dick and Critical Jack. I'll be using only 1 reservoir this time to minimize the risk of contamination. I finished off 4 litres of H2O2 7% cleaning the whole system. Truly a huge pain in the ass to clean everything. I really hope this issue doesn't recur. So 10 gallons of water mixed with the usual minus Liquid silicon. Cal Mag - 5ml/Gal - 50ml Micro - 2.5ml/Gal - 25ml Gro - 2.5ml/Gal - 25ml Bloom - 1ml/Gal - 10ml Aquaburst - 1ml/L (3.8ml/gal) - 38ml pH - 5.98 EC - 1.08 mS/cm T - 26 11/3/2021 - the plants are looking so much better today. But not so much for Moby dick plant 2. Almost all the leaves have dried out and dying. But the good news is I can see new growth from the nodes which means the plant might make it after all. Let's see how it progress the next few days. I removed all the dead leaves to avoid any risk of pests. 12/3/2021 - All 4 Critical Jacks and plant 1 Moby Dick, LST readjusted.