The nasty slimy white substance is algae. Algae builds up when light penatrates into the water of the res. Make the res light-proof. Be very careful about cutting the roots if you choose to because this can cause hermaphroditic traits.
Sensi Super Skunk Reviewed by Sensi Super Skunk on . NFT system ROOT question hi, i have a six basket nft system from ezhydrokit and have some questions about my process so far. i'm quite new to this and am learning FAST. before i was having trouble with my roots being a nasty slimy white because this system not only was not on a slant (i've fixed that) but the baskets were NOT hanging for the roots to reach down (i've fixed that also). now the plant is thriving and loving life so far. but i've watched the roots and there is some buildup of white slimy stuff Rating: 5