do you mean the seachem flourite gravel? i have that. it works pretty well id say. my plants arent dying. the only thing is that when you rinse it, RINSE REALLY REALLY WELL. it shouldnt cloud too much if you gave it a ton of rinsing. just try not to stir up/disturb too much of the gravel when water changing and moving things around and it shouldnt really cloud. it doesnt change your ph. i think i got my 15 lb bag for about... 20?