1) Adjust the pH of water to 5.5. (NO LOWER). Use pH Down or lemon. Check with pH paper or meter.
2) If soaking A-Ok plugs, Macroplugs, or Miniblocks, mix in a little bit of plant food. Then just dip the starter in this pH 5.5 mix and itís ready for the seed or cutting.
3) For all other Grodan products- SOAK, FLUSH, then PLANT!
Soak in plain water (pH 5.5) for 1/2 an hour (longer if soaking granulate).
I was confused because they directions on grodan says that you don't need to soak the cubes that long. I followed the directions and don't hae thse crazy swings. My PH typical runs from 5.5 to 6.0
Great information +REP
4) Flush through with pH 5.5 water mixed with some plant food. Make sure the flushed water goes to waste. Then plant into your prepared Grodan block, slab, Grow-Cubesô, or granulate!
DO NOT SQUEEZE the cubes or blocks. They are designed for the perfect air/water ratio. When you squeeze the product you may ruin the good structure.