As far as a silica product goes, I see RAW has a silica supplement that has a neutral pH. I sent kelp4less a message asking for more info on their silica product. sa- I see you don’t worry about pH when using dilute silica blast and just use it every couple/few weeks. I know I am a pain in the rear with my resistance to checking pH but I ham what I yam. I have some bottles of pH up and down from GH (I think). When I was trying to shoot for 6.3-ish, it seemed like the tiniest amount would cause me to overshoot. I wound up dipping a quarter of a butter knife blade in the liquids and stirring a gallon of water with it to walk the pH in. Seemed unscientific and unrepeatable so I gave up in the end. I am a creature of habit, stuck in my ways and kinda lazy as well. The first step they say is to admit you have a problem. I am quite accomplished at that...