Multi-Strain/Late Start

I added another light earlier this week! Picked up another 110w draw Quantum Board.. Everything is done stretching for the most part. Had to knock out any new growth below the canopy, which kind of pains me. The largest plant had some issues with fungus gnats but I dried out the top of soil, kept a fan heavy on it and sprayed lightly with a mix of water and hydrogen peroxide in hopes they'd drown or just GTFO. Problem went away after 2 days of monitoring and tweezing off lazy flies. I've got about 5 pots with plants of different sizes in them but overall I water the whole batch with about a gallon and a half a day.