I'm assuming these are indoor? what kind of light? I wouldn't water until the top 2 inches feel dry. It's ok to let them dry out a bit between waterings. 2gallons for 10 vegging plants sounds like alot...especially every other day. When I was growing under a 600w HPS I would water 8 plants with 1 gallon of water. About every 3 days I would give each plant about 1/8th of water. And only use nutes every other watering....

It's easier to know how to help with pictures. But if your plants are drooping at all that is a sign of overwatering. good luck! :jointsmile: