This is my first time using the Purigen.
Having a large (150 Gallon) South American - Planted Discus community tank, maintaining optimal water quality is a challenge from the large amount of uneaten food and plant waste present at times. I use two SunSun 603 pre-filter into two SunSun 703B Canisters in which each has two 100ml bags of Purigen. Water has been clearer for sure. I also use a polishing Magnum at water changes... Crystal! Again fast Co-op service and well packaged as usual.
Good product. Fast shipping and well packaged. I've used this product in the past many times. It's a pretty good water polisher. It's also really helpful to have in your emergency kit for mystery ammonia spikes.
definitely love this stuff. Keeps my water very clear, and my fish very happy. Just do yourself a favor...don't squeeze the used/black/brown purigen pouch. especially if you mean to recharge it.
My water has cleared up significantly since using this product. Including the tannins from my large piece of madrona. Yay!
After a week of using this product. The water became crystal clear. When the product needs to be recharged, just soak it in 1 to 1 bleach and water for 24 hours. Rinse and use discus buffer to set the ph to 7. No more carbon.