I did try Purigen for about a week and unfortunately it did not help with the cloudiness. I couldn't tell if it was bacteria or algae so I just decided to try the UV to see if it would solve either issue.
Regarding Purigen and cloudy water.... The Purigen resin has an affinity to adsorb decomposing organic particulate matter. According to Seachem, it does this before it breaks down to form nitrates (I'm not so convinced as I formerly used Purigen for an extended period (fish only tank, pre-plants) and I saw no noticeable decrease in tank generated nitrates).
In any case, cloudy water can easily be an algae, diatom, or bacteria bloom or tannin's from wood. Purigen won't do much for most any of the blooms.
I know that Purigen has a fan club here, but after using it for months, I'm not that impressed and can frankly polish water just as well with inexpensive and disposable Polyester fiber (aka filter floss).
Actually, lately, following the weekly water changes and tank/filter maintenance, I've been running a Marineland Magnum Internal Polishing Canister Filter with the micron cartridge and 8oz. of diatomaceous earth.
I run it 4-6 hours. Crystal clear water!
footnote: I sometimes wonder if we just might try too hard to maintain clear water when some fish just my prefer dirty water?!?!?! Perhaps more applicable to breeder tanks rather than display tanks.
Tank On, Mike-
60g Marineland Community, Finnex Planted+ 24/7, Silica (pool filter) sand.
10g, 29g, & 37g fry grow out tanks, 110g stock tank.
What came first, the chicken or the egg. It was the egg, but not the egg from a chicken.
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