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Why bother?
Bacteria blooms, especially in a new aquarium, come and go on their own. It's not necsessary to add chemicals to your tank to put them down.

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542 Posts
it's not a chemical. it's a pouch thingy that you stick inyour filter and it's suppose to absorb chemicals that cause blooms. like algae, it would remove nutrients.

the problem with this is that if you don't change it, the pouch starts to smell realllly bad. the downsize, it supposed to be changed every 2 weeks, which costs a lot of money!
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