How much does Purigen absorb? How about Nitrates?
I dislike making experiments on my own to test something before I use it, but without the proper knowledge of a new product that is on the market I will not use that product if it's not that useful to me.
Okay, purigen may absorb ordors and organic waste, but how much of "X" can it absorb in a certain time period? Nitrates tend to build-up over time in the aquarium, and anaerobic bacteria will take too long to colonize before the nitrate levels become toxic to any vertebrates. Specifically, it's harder for anaerobic bacteria to colonize than aerobic bacteria; however, deep and dense gravel beds can help with that by creating low-oxygenated areas withing the gravel.
I would suggest a product that can absorb nitrates as well and be regenerable - having the same function as Purigen, but will also absorb nitrates. Adding large doses of Seachem Prime, specifically 5x the inital dose for the amount of water in the aquarium, may lower nitrates..., but by how much?
Last edited by LabTest57; 02-09-2009 at 12:01.