Dutch Bucket tomato and pepper problems
We have an NFT system of lettuce which is doing well in our garage. Next to it, we have a system of ten Dutch Buckets, which are not doing so well. Both systems are from Farmtek. We just started working with hydroponics and these systems in March.
Four of our Dutch Buckets have peppers. The plans are large and pretty, but the flowers keep dropping.
In the same system, we have six tomatoes, Roma and Beefsteak. These were started in February in Rockwool cubes and then transplanted to the Dutch Buckets in Perlite. We use Botanicare's CNS17.
Once the tomatoes started to bloom, we switched over to bloom from the grow and that is when the leaves started to yellow around the edges, starting with the bottom 2/3 first, then curl up, and die. One tomato grew and then suddenly stunted to about the size of a golfball. We thought the environment was too wet (system was on a timer of watering for ten minutes every two hours). We then changed it to five minutes every three hours. We flushed the system with Clearex, and then used Ripe with the Calmag supplement, thinking the nitrogen must of been to high. All nutrients were mixed per package directions; Ph has been about 5.8-6.0 through the entire time. After one week, nutrients are added half-strength. The entire reservoir is replaced every two weeks.
Our lighting system is a 400 watt metal halide, running on a schedule of 12 hours on, 12 hours off per day. We do have a dehumidifier in the garage; humidity has averaged anywhere between 55-65%, temperatures range from 84-95 degrees.
We are stuck as to what direction we should take these plants. Any help is greatly appreciated! Thanks!