PURA PhosLock GFO Phosphate Removal Media - 150 gram

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Magnavore (PURA)

Groundbreaking filtration media at the right price. For Reef, Marine, Planted, and Fresh Water aquaria!

The PURA family of filtration media is formulated to reduce scum formation in fresh and marine aquaria.

All PURA products are formulated with Beta-GFH (Beta Ferric Oxide Hydroxide), the groundbreaking German made phosphate removing media that eliminates the primary nutrient of aquarium scum. PURA filtration products lead to a much cleaner and less labor-intensive aquarium, good for the animals, good for the hobbyist, good for customer retention.

Hydrated Beta-GFH is vastly superior to white colored Alumina based phosphate removers and greatly superior to numerous Alpha-Ferric Hydroxides sold in dry form.

PURA PhosLock removes 45% more phosphates than Alumina media, and 20% more than Alpha-Ferric Hydroxides. Unlike Alumina, PhosLock never leaches phosphates back to the aquarium. Unlike competing Alpha-Ferric Hydroxides, PhosLock never disintegrates and never turns soft and muddy in aquarium water. PhosLock comes fully activated right out of the jar. PhosLock does not need a specialized reactor and can be easily confined and implemented in a fine meshed media bag.

PURA PhosLock
Professional Strength Phosphate Remover


PURA PhosLock is 100% pure Beta-GFH and will keep phosphate levels at 0 ppm, a highly desirable level in reef, planted, and exhibit quality aquaria. This is the most cost effective phosphate remover in the market place and unlike dry phosphate removers, PhosLock does not turn to mush in an aquarium. PhosLock outperforms all competing products. Packed hydrated with an induction welded foil seal for freshness, protection, and long shelf life.

PhosLock is the benchmark German made ferric hydroxide media for total phosphate removal in all aquaria. Used all over the world, it is the product of choice for many critical water purity applications. PhosLock permanently binds phosphates. With regular use of PhosLock any aquarium fresh or salt, reef or planted, will stay much cleaner and less maintenance labor intensive! Media bag with PhosLock can be placed inside of: canister filters, power filters, pond filters, sumps, refugiums, corner filters, next to uplift tube on UG filter plate. PhosLock can be placed directly into Bio-Bags or other fine floss bags. PhosLock is 5 to 10 times more effective than white activated alumna media and it is completely safe for fish and invertebrate, fresh and salt-water aquariums.

Reef Chemistry Calculator

Use our chemistry calculator to find out how much you need to add to your aquarium.




Manufacturer Info

Magnavore Company
Magnavore Company started manufacturing magnetic algae cleaners in 1998. They quickly developed a reputation for a high quality effective product. Today they manufacture the third generation of premium Magnavore magnets with innovations like Extended Reach, Glasscare and Acrylicare Brushes, Tune-Up and Acrylicare kits. In 2004, they began manufacturing new filtration products that are a cut above the rest! Each product made is the best in it`s category. That Magnavore`s our focus and promise.

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Overall, others give this:

18 Reviewers (94%) would recommend this

Overall Rating:

5  Star
 13
4  Star
 3
3  Star
 1
2  Star
 0
1  Star
 1
 
“Seems to work ok”
3.0

Better than other products.... The directions are not good and make sure to buy the huge tub of it. Ur changing it every 3 months in a reactor.

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“Very Poor Product”
1.0

At first I was mystified as to why this product was getting 5 stars. After reading a few I realized most folks were using GFO for the first time & were overjoyed to see results with their algae problems. Yes, Pura Phospock works as do all the other major brands. I've used a bunch of different br...Read More

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“PHOS LOCK IS LOCKING UP PHOS”
4.0

WELL, IT IS KINDA EARLY IN THE GAME BUT TESTING SHOWS A FAIR REDUCTION IN PHOSPHATE LEVEL, I HAVE THIS IN A LARGE EHIEM CANISTER WITH CHEMIPURE ELITE AND IT IS WORKING..ONLY BEEN IN USE FOR 5 DAYS BUT SHOWS SIGNS OF DOING WHAT IS SHOULD BE DOING..GOOD DEAL FOR THE DOLLARS SPENT...

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“So far, so good”
5.0

I have used this product now for about 2 weeks and so far, I have noticed almost undetectable phosphate levels. I have tried many other items up until now. It comes with its own media bag and I just added it to my sump. It doesn't leach the phosphates back into the system like some other products...Read More

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“Eliminates hair algae”
5.0

Had been battling severe hair algae in my planted aquarium for almost two months. Tried all sorts of remedies recommended by others in forums and such. Phosphate level was 0.09ppm, the rest of the tank chemistry was nominal. Finally bought the small bottle of Pura PhosLock to give it a try and put...Read More

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“PURA Phoslock Excellent”
5.0

I really like the way this works in my display tank (150 Reef) I use in in a MR1 Reactor and run it constantly. It will not turn to mush and the grain size is large enough that it's not getting out of the Reactor. I do need to rinse it well first and at times the water will turn a little brown bu...Read More

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“0ppm”
5.0

just started using PURA PhosLock on my 90G 0ppm what more can I say. Not to mention the great price.

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Overall, others give this:

18 Reviewers (94%) would recommend this

Overall Rating:

5  Star
 13
4  Star
 3
3  Star
 1
2  Star
 0
1  Star
 1