Seachem Flourish Excel 500 millimeters, $9.10, Amazon To be used in place of a charcoal filter along with other media, Purigen is to be used in a fine mesh bag. So if you can acquire a 200 micron filter sock or bag that should do you just fine. The most important thing that will make a bag a better option is using it more than once. They are packaged and marketed in different volumes but for this Seachem Purigen review, I am basing it on Purigen 100ml which comes in a fine mesh bag. To aid in finding a store near you, Seachem offers an online listing of dealers and Seachem Select Dealers. Flourish Excel can be used alone as an alternative to a CO2 injection, or in conjunction with one. The larger bag on the left is out of a FOWLR tank and is 250 mL, the middle bag is from a reef tank, and the one of the right is from my little overstocked 10g fry tank. Purigen The Bag is an innovative filter bag with a durable seamless seam. There are several safe household materials that you can use to make DIY canister filters bags. Purigen 100ml in mesh bag. Unlike filter bags made of nylon or similar materials, "The Bag" by Seachem is resistant to bleach, corrosive substances and acids. I bought these as a cheaper alternative to the Seachem 'The Bag' filter bags to hold Purigen filter media. Partly because of this, the bag has a longer lifespan than most comparable filter bags. It is ideal for all types of water, including marine, brackish, and a broad spectrum of freshwater from acid to alkaline. Every material has a different footprint when it comes to energy and water consumption, litter impacts and recyclability. The only problem is i have to use excessive quantity to see affect, like almost 2-3 times the dose they recommend. But there are some other things that can make it a more sustainable choice too. They are sufficient, although I have noticed that the mesh is a little too big as some of the Purigen occasionally escapes. I have a 200 micron bag that I got in a box of AquaManta Phos-Nitra Remover from Maidenhead Aquatics and that holds Purigen just fine. It removes organic wastes before they turn toxic… Fish wastes, decaying plants and uneaten fish food are among the few sources of organic wastes in your fish tank. Where most packaging elements have a clear sustainable alternative, the poly bag has been a consistent sticking point for us and the 800 brands we deal with. Seachem "The Bag" is 180 micron mesh. Doesn't seem to do any harm to my tank though. Even smaller bags cost nearly $3 apiece. You may not think an individual filter media bag is particularly pricey, but depending on its size, a filter media bag can cost as much as $5 for a single bag. Having over the years reviewed and tested many alternatives, Vela is the only solution we have been happy to use and endorse based on environmental, operational and economic factors.” I put it in a mesh filter bag directly inside the sock in my sump. Hi All - I have been using phosguard for the past 5 months with good results in my 105 gallon. You can find Seachem products in most of your local pet stores, but a Seachem Select Dealer is guaranteed to carry more product while being able to provide better service and information about the Seachem … The best alternative to plastic green bags. Seachem's HyperSorb™ is a premium synthetic adsorbent with outstanding organic removal capacity and ionic management abilities; it removes organic waste, toxic vapors and other pollutants. Has anyone had any experience with using Seachem Purigen in a bag other than the Seachem Bag? Seachem The Bag tb.v. 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