Ok, so I'm wasting a ton of nutes. I keep having a sludge build up. I'm running a 20 gal. Rdwc with two 5 gal buckets, one airstone in each bucket, submersable pump, and a tote for the main res. I have no light leakes, water temps between 60 and 73 lights off and on. Ph well within range. After a few days then res gets slimy. I'll then clean, sterilize and add filtered water back into the system. Let it run for a couple of days to make sure nothing crazy is going to happen. Then I'll add my nutes (pbpg) at 50% strength. I also add hydroxy me at 50% and rapid start as recommended. 24 hiurs later there is slime. Am I missing something here or is there a problem I am unaware of. I have grown for years in coco and switched to an automated system due to my 60 + hour work scheduale. Any help would be great.