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I recently changed my tanks from charcoal to Purigen. The good news is that after one month, my nitrates are closer to 0 than the 30 they were always hovering at between water changes. My question is when do I change the Purigen. I don't want to recharge it I would rather just buy it again then bleach it, use Prime etc.
I've searched and searched but all I read is "when it's brown" which is sort of subjective. I mean, brown can be anything from sand the color of the purigen in my tank to chocolate. Some people say "Every 6 months" but I'm sure that's overly optimistic in a full stocked large tank like mine. Does the whole thing have to be chocolate brown? I've seen pics of purigen that are coffee brown - is that when you change it? If there are some white flecks, should I still change it?
I bought a bunch of bags on sale so I could just switch it out but I don't want to do so prematurely. Could someone give me an idea of what "when it's brown means? Thanks in advance! Never used it but Seachem has an number you can ask the manufacture. My tank water stops looking polished when my PurIgen bags turn milk chocolate brown. That's is when they get replaced. Apparently, they adjust pH and the latter also removes chlorine, chloramine, or ammonia.
Since both solutions are not exactly the same, I wonder how can they be used interchangeably. Hopefully someone might add some thoughts on this new development. Money grabbing by a company or necessary step. Thanks for the heads up on the change to the instructions by Seachem. That is exactly what I suspect: money grab to sell a new product. The way I present old instructions have worked fine. I have regenerated twice and am due to regenerate again.
The directions on your package may say to use 2 tbsp of Prime. This concentration is not sold anymore. By doubling the Prime dosage, we are accounting for newer 8. We also recommend smelling Purigen after the regeneration process. If there is a chlorine or bleach smell, repeat the process of soaking in Prime.
I did my first Purigen regeneration in late October after using it for about 7 months housing either 1 betta or 5 neon tetra plus a few ghost shrimps. The bag was pretty dark brown, perhaps a tad lighter than yours. After 1 day in the chlorine, it actually turned pearly white, much whiter than yours.
After rinsing it clean and storing in water on Monday I waited till the weekend to put it back in due mainly to time constraint. Before doing so, I tested the pH of my tank around 7. I was doing some research on Purigen and some people mentioned that they had a pH crash after regenerating Purigen, especially with a small volume of water, like our Fluval V. The pH test came back bright yellow with yellow being 6. So, I threw caution to the wind and hoped for the best.
For the next 6 days, I did a water change of half a gallon a day and tested the pH each day. It had gone from bright yellow to pale yellow after day 1 but had stayed the same for the next 5 days. It was not until mid-December that the pH came back as a greenish yellow, which is around 6. That first week, I was thinking I better get some of those extra stuff Seachem instructed so I did some research on Discus Buffer and Neutral Regulator, thinking they most likely neutralize the acidity of the Purigen after regeneration.
Well, the Neutral Regulator does exactly that as the name implies but the Discus Buffer is to adjust pH down to 5. That seems contradicting. As Stormal mentioned, Seachem probably did change the formula somewhat. So, for the next regeneration, I will definitely use the Neutral Regulator to treat the Purigen so hopefully, the pH will get back to near neutral.
But when the pH has come back up some I have been adding the Neutral Regulator on a weekly basis during regular water change for the last 3 weeks. It has come back to around 6. It has been a very slow process, slower than I like but probably for the best. I will definitely start adding Neutral Regulator to my Purigen-regeneration water. I have a big bottle of it so if I can avoid buying the Prime it would be great. Thanks, I guess I can try it. I wipe out the thousands of dollars of coral I have in the tank?
I assume you use the dechlorinator to remove the bleach, correct? I use rodi water for rinsing etc so Im not worried about tap water dechlorinization. I think the dechlorinator helps to neutralize the bleach. The most important thing is to rinse heavily in tap water to get the bleach out. Your final step soaking and final rinse can be with rodi to ensure all is good.
I have a 65 gallon freshwater tank. Newly setup from a 20 gallon,on May 2, Six days prior to that I purchased 2 large pieces of driftwood that soaked in a new trash can,changed water daily. Left for a 4 day vacation and the water was so brown you could not even see the fish! Read about the Purigen and purchased 4 bags. Put in two, the water is much better,not clear,but have been reading this may take up to a year.
Changed the bags already. Is this permanently stained and really not worth recharging? How long should I leave the bags in the filter as they are staining so quickly? Thank you for any help. Well Clorox bleach is the key! I used some bleach we had around the house and it removed a ton of the tannin. I rinsed them left them soaking in water and picked up Clorox on my weekly shopping trip.
Seconds later White! Now if I soaked them in a no name bleach for 24 hours,should I leave them soak in Clorox for another 24,or because they are now white cut the time?
Will it damage the pellets leaving it longer? I will continue almost heavy water changes and use the bags,I believe we can get the situation under control eventually. I am sure that 6 months to a bag in this situation is out of the question.
How many times do you feel they can be recharged before they are trash? Hi Nate — I love Purigen! I have 5 tanks and use the ml bags in all of them, and have for a couple of years now. I use 1 pint glass mason jars to do my regeneration, with a plastic lid. I can fit 2 or 3 bags in one jar 2 is better. I put the lid on, then shake it up to distribute the bleach solution. The lid also keeps the smell down! I have 2 lids, one marked W and one marked B. One question: why do you keep it wet when storing?
Since I discard them with each filter clean-out, it only gets used this one time. Great tips! You very well might be right about drying out purigen when storing. However, Seachem actually instructs you not to let it dry out. Thiiiiiiiiiiiiiiiiiiiiiis long! When it browns. Maybe months depending. Ok thanks! Your mileage may vary. Join the conversation You can post now and register later.
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