Quote Originally Posted by mgjscdhl
I've done folliar spraying to keep moisture level up and some water when topsoil was bone dry.
Don't think overwatering is an issue unless the soil is very heavy, thus foliars shouldn't be a problem. Since the soil is peat and perlite, overwatering is going to take some effort. I seriously doubt this is your problem.

Again, I'd recommend getting a soil test kit. I've seen a 1 use kit for under $5 at Home Depot, and $20 for a nicer one at the local hardware store. You need to be sure your SOIL pH is also appropriate. I go for 6.5-6.7. Usually my water is at 7.3 before adding nutes, and with a lot of peat in the mix this has worked for me on many dif. gardens. The test kit will also tell you if your nuts are out of balance.

Reading your post again, you're watering with a solution in the low 6's, so I still think you have a pH prob., but maybe on the low end and not the high end like I had. I always add lime to my mixes to balance the peat moss.