Mephisto Genetics Canna Cheese 1:1 Coot's Living Soil Mix

06-21-2024 We are close to the finish line. Switched to cutting my ro water with 25% tap water because of the issues I had with pure ro during the grow. My water now comes out at about 0.2 ec and ph of 6.7 to 6.8. Adding a tiny pinch of epsom salt per 5 liter. After a lot of thought I came to the conclusion that the pure ro stripped the soil of minerals mainly calcium and magnesium. As a result the soil didn't buffer as well and the low ph of the ro water locked out the nutrient uptake. Top dressing and adding gypsum and epsom salt to the ro did not fix the problem with the desired effects as I suddenly got calcium toxicity. That was the point were I decided to cut my ro with tap and add some epsom salt. As you can see on latest pictures the plants did recover nicely compared to two weeks ago. They started to get a natural greenish leaf color again. For my next soil grow I will keep using 75% ro + 25% tap + epsom salt. First time using ro water and already learned a lot. 06-25-2024 Everything goes smoth. They already requier a lot less water then the previos days so senescence is in full swing and harvest gets closer by the day. Applied a light feeding with bat guano to boost terpene content. 1tsp per gallon of water mixed down to 50/50. 06-26-2024 Buds still swelling and the microscope tells me that I should harvest by the end of the week as there are already the first signs of amber trichomes on the top buds.