Is anyone on here using Purigen? I started using a bag about a month ago and was mazed at how it worked. They say you can recharge it by using a bleach solution but I am afraid of doing this for fear of not getting rid of all the chlorine.
I use it in two fw tanks. It works great for me. I am starting a FOWLR tank this week. I'm not going to use it in the begining, but I plan on using some in my hob filter. I tried to recharge it and it didn't come out good so I just threw it away. I probably didn't use enough bleach. I had the same fear as you.
I played around with it once but felt it was really unneeded. I was able to recharge it with success. So long as you follow the instructions and use a de-chlorinator you should be fine.
I personally thought it worked good.. Though I think it should only be used as a quick fix until you find what the real problem is that is in the aquarium..
I used it when I started up my tank and did not experience a cycle as a result. I gradually reduced my tank's dependence over a month and had no adverse effects. 2 months later, I started to see my nitrate levels rise, so I figured I'd put it back in. I haven't seen nitrates since then. I thought my test kit might be broken, but I got an independent test to confirm. Best product ever.
The funny thing is that not all dechlorinators will regenerate it. I'd highly recommend using Prime. I used tetra's aquasafe the first time and it permanently fouled it. Since it's pretty expensive, I don't take chances anymore.