So, I'm using a sand Substrate, what form of dosing should I use for it? Water colum fert or root tabs? And if I'm using Root tabs, how many should I use in a 65gl tank and how often? Will it not leach into the water and kill the fish? What brand should I use? If I'm using water colum fert, wont it just instantly kill the fish due to ammonia and such spiking? If not, then, how often should I dose and how much SHOULD I dose? what brand should I use? Thank you!