Stop watering so much. You still have a root ball of soil that will take time to dry out. I doubt you need to water even once a day, but I don't know how big the root ball is.

The soil acts like a sponge so even if it only comes up half way, its all gonna get soaked. Water only once the root ball is dry; you're going to have to time it out but remember, as the plants get big and begin flowering they're gonna go dry faster, so watch out.

You probably only have to water once every two or three days right now, but later you will probably have to bump it up to once a day.