White Worm

I germed 5 seeds then put them in little grodan cubes. After 1 week I have 4 seedlings. Looking at the failure with a magnifier I could see little black beads so I tore the cube apart. There were a lot more beads/eggs inside and a tiny white worm with a black head. Inside the seed shell there was another. What are they and what can I do? I dont want to lose 4 more Barney's LSD.

After searching I'm sure they are Fungus gnat larvae. Anyone know a good treatment?

i got the same problem. but they dnt seem to be hurting the plant or anything. but i wish i could get rid of them just to be on the safe side. i got some soapy spray that works , but i cant use it during flowering stage. ima take a pic later tonight and post it.

Mine were pure white, about 2 - 3 mm (3/16"), no legs or appendages with slight white rings running around the body. Soap spray seems to help (in flower just spray soil area only). Read to put out cubed potato and replace every several days as well as beer in a jar lid (don't hate, but I don't drink beer). Also place 2" of sand (sterilize if outdoor stuff) on top of pots - doesn't interfere with anything else just the bugs (my pots are pretty much full to the brim).
Whatever you do it seems mosr people don't stick with it long enough. They decimate the current population and allow the next gen to flourish.
Mine emerged from a fem RockLock seed, Grossed me the fug out!

get beneficial nematodes they will eat the larvae in the cubes or in soil.