Strawpicanna RDWC. 2nd grow.

Currently at day 3. This is my second grow ever. Putted the clones in the RDWC the same day as I got them. Made the solution at 0.2 EC and 5.3pH. 30L of the 260L is tap (to stabilize pH). Tap is at 0.8EC. After a day EC increased to 0.3 and pH to 6.7. Pumped the water back in the watertank and adjusted pH to 5.5 before putting it back in the RDWC. pH climbed again and now seems to be stable at 6.3 now. EC at 0.3. I think this was because I washed the pebbles with tap water. The solution touches the netpots/pebbles but not the rockwool cube. I lower it once the roots start to show to 1 inch under the pot. I’m going to increase the EC of the currenr water, after a couple of days to 0.4-0.5EC. 2 of the clones don’t seem to be to good. I powered up the humidifier and am using it again (was planning to grow without) to get the best environment possible.