View Full Version : A Survey

07/31/2017, 03:21 PM
Chemi-pure or Purigen? or both?

07/31/2017, 04:09 PM
Neither :)

07/31/2017, 05:10 PM
Chemi-Pure is a mixture of activated carbon plus some resins. The resins probably don't work in saltwater, but the carbon is fine. Chemi-Pure Elite has some GFO in it as well. I'd go with cheaper products, but Chemi-Pure is good. I think that running activated carbon and Purigen is fine. I personally think activated carbon probably is a good safety net, but I've never bothered with the Purigen. I'd try Purigen if corals were having problems, though, since it should adsorb some compounds that carbon won't trap.

08/01/2017, 02:21 PM
Thanks. I'm trying to decide what media would be good to add to a sump where bio balls used to be...

08/01/2017, 02:58 PM
Rock rubble.

running scott
08/03/2017, 09:58 AM
Love purigen. Like having a protein skimmer in a bag. Easy to tell when it's exhausted, easy to regenerate. Be careful not to use too much if you have a softy tank that likes lots of nutrients because purigen seems to do a good job stripping them.

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08/03/2017, 10:27 AM
Thanks. I have used Purigen, but never regenerated it. If I bleach then "prime" it will it be like new?

08/03/2017, 04:32 PM
It'll be renewed to some extent, but these resins go downhill over time. I don't know how often you'll be able to reuse it, though, and its capacity is going to be hard to measure.