Slowed growth + curled/drooping leaves (symptoms of overwatering, though not necessarily) + needing to water often = rootbound

Put them in new pots, and they will take off :thumbsup:

Also, they look pretty dark green to me, which tells me that maybe you're giving them a little too much nutrients... maybe. I don't think it's really an issue at this point. Rusty is a fan of FF nutes, and recommends (or at least practices) a flush once a month to get rid of the salt build-up. You can try using a drop of non- antibacterial dish soap to help in the flush also. Use 3x the amount of water in relation to pot size (1 gal pots should be flushed with 3 gals water). Take your time with this, it won't happen in 5 minutes.

As for the bottom leaves, I had this happen before also, when my pots were too small. But don't worry too much about them, as long as the new growth is good, you're fine. Old leaves = old news :jointsmile: