What kind of bug is this?

Hey gardener. I don't know these little bugs, but I know that if you're growing inside, it's to avoid the problems outside, especially those pests, so you need to get rid of them. I read in a bunch of tutorials that neem oil mixed with water is good for killing and repelling them, but you can't just apply it once; it's more of a thing you need to keep doing until they're gone. And watch out for the eggs because if you have those, they're gonna ruin all your hard work.

Good evening Trungjohnle, Doesn't it look like mealybugs? Example: https://www.jardinier-amateur.fr/jardin/cochenille_farineuse,914.html If that's the case, I recommend diluting 2 caps of Neem oil (2cl/l of water). Put the mixture in a spray bottle and spray the affected plants once a week or every 15 days. Do you have a close-up photo? Otherwise, there's pyrethrin extract from pyrethrum that works well! Hoping to have helped you with your problem? Happy growing.

Is watering every 2-3 days normal? I see people water everday and dont understand how s that possible. I water every other day and the soil is always wet.

hey there, these kinds of flies are sometimes in the soil you buy so it's basically not your fault, if you had a sodium light usually the lights or the fan will end up "getting them" for you. if they dont have food they will fly away but if you over water it could become an infestation. just follow a strict wet dry cycle and keep monitoring the situation. Hope this helps ! 🚀

Could be fungus gnats. Check your roots and make sure there are no eggs (they look like little brown spots). If there are eggs flush your tank use a hydrogen peroxide supplement until they are dead. You can use sticky traps hung from the roof to catch any unwanted bugs in the tent.

Fruit flies.. They are usually only attracted to sources of sugar.. Maybe your foliar spraying with something that has simple carbs? Most likely you have a bowl of old fruit or something else that is attracting them as the little guys tend not to be too keen on Cannabis til the flowering happens. Imo.