Sounds like Fungus Gnat larvae, or springtails.
For Fungus Gnats, water in some Gnatrol Powder, or crushed up mosquito dunks on the soil and in the reservoir. Also, you can put some slices of potato on the soil and the larvae will crawl into them. Then remove the potato.
There are some good resources on fungus gnat control on forums around here. If they are jumpy, they are springtails and harmless to plants. Just try to keep the soil dry and avoid standing water under the plants.:jointsmile:
KaptainKron Reviewed by KaptainKron on . bugs in soil! hello, ive got a plant indoors in a closet, in soil, hps 250 watt light. it is in the process of flowering, no orange yet but pistols are large. 12/12 light. in the soil i noticed today that when i water it very tiny white bugs come up on the pools of water then dig back into the soil when the water soaks in. there are a lot. no flying ones, theyre only in the soil. what should i do to get rid of them? ive heard of neem oil but how do you use it? thanks. Rating: 5