Thanks, I won't bother adjusting my pH then. Just let it be. I went ahead and added worms, since I love those little creatures Good to know I will need to clean out my gb from time to time. I already had to pull out all the rocks from one of my growbeds because it had a leak. Luckily it was not that difficult. I am going to look for some maxi-crop, just in case I need it. Thanks again.