Plantex csm+b is a "poor mans drip dosing" micronutrient solution that closely mimics flourish. I was going to add my weekly amount of micronutrients and when i poured the 5mls out there was chunky mold or bacteria growing in the bottle. I assume this is common but i dumped it all out. I have heard of people adding HCl to keep the sol'n clear of mold. does anyone do this? i was thinking that adding a fair amount of salt would achieve the same effect. please help!!!!!