if you really can't afford flouro than just use distilled water with no additives/nutes.
When filling the rez, pour some over the hydroton to help flush what is still in your rooters.

The next few days your ph will go up slightly as the plants leach it all out. Then start to add your nutes slowly
herbie the love bud Reviewed by herbie the love bud on . Progress? I've noticed that the very tippy tip tips of the roots are kind of shriveling and turning brown, besides that they look nice and happy. I would love to know how old these are. I know they are well over a month old. Have I stumbled upon the world's slowest growing strains? Overall, for those of you who remember the pictures from my last post- How is my progress? PH Drifts from 5.5 - 6.1 I haven't added any more nutrients in the past week. I had it around 250, and It's raised to 320! Rating: 5