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

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

bertoni
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.

Nirol
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...

Sk8r
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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Nirol
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?

bertoni
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.