I had a horrible time keeping my ph stable with the hydroton till the end of the first run and I just rinsed and reused the same stuff and all my issues were pretty much gone...I'm about to use a new batch of hydroton and I'm planning on ph as necessary shooting for 5.5 and make sure it's stable before using it on helpless seedlings haha

I'll put 4 gallons of water in a 5 gallon bucket at 400ppm maxigrow and keep phing it to 5.5 I'll see how long it takes to level out

Is it just pure baking soda? Brand? I use advanced nutrients pure concentrate and I can't plug it enough...it's the cheapest by far 15 bucks for 32 oz's and lasts the longest(bout a year maybe 2) and I don't think I've noticed any ppm change as a result (just wipe off skin as a heads up unless you've mixed it down it will burn)

how bout showing us you've mastered that new camera