Yeah that was strange. Maybe it was due to some rapid growth, or heck if I know.. RO water is nice. cheaphydroponics.com sells filters now. You just need a faucet adapter (can get one anywhere, same as a waterbed hose adapter)

At the moment, I've PH Up'd to 5.8 and it's stable for now. It took a few ml to get there. My PPM is at 1400, which is the highest by far it's ever been. Maybe I've been underfeeding them. I have been very light on nutes for fear of doing harm.

These are the reasons I started with the freebie seeds and not the "good" ones.

We'll see how it goes.
MisterE Reviewed by MisterE on . PH Dropping quickly? I'm sorry to post this question, I tried to search but the term "PH" is too short for the boards search function... I'm having to PH Up my nutes more frequently as my plants grow. I'm wondering if this is considered normal, or if it is indicitive of any actual problems etc. I only use 8 to 10 gallons or so total (going to change it out and measure carefully today) and the plants are only about 10 inches tall, on their 8th node. I calibrated my continuous meter yesterday, and PH Up'd to Rating: 5