Question 1

Does this act like purigen? Does it make the water clearer? Or is that the carbon?

Accepted Answer

The BioMax media is basically an insert that provides a place for beneficial bacteria to grow.  These good bacteria will help reduce the levels of ammonia and nitrite in your system.  Purigen is an actual absorbing type product that removes impurities from your system water.  I listed some differences between purigen and carbon below.Purigen ) Removes things in the water before they turn into Nitrates slowing water degradation) Clears up the water making it sparkling clear) Can be regenerated multiple times) May last for quite awhile before it is exhausted and needs to be regenerated depending on it use) Does not effect or remove medicines ) Turns darker brown color as it is exhausted and lightens again after regenerationCarbon) Removes most medicines) Cannot be generated) Usually is exhausted relatively quickly) Removes things in the water but does not clear the water) Can leech things back into the water it once removed if it is not changed once exhausted) Shows NO changes as it is exhaustedCarbon is similar to the purigen product in that it absorbs odors, discoloration and impurities in your water but they areHope this helps answer your question.

Question 2

Are these the kind of net bags that you have to fill with the red plastic piece?

Accepted Answer

No

Question 3

Does this make water cloudy?

Accepted Answer

Ive never noticed that

Question 4

Does it matter what size? I want to save money and get the 70 gal for my 3 gal tank lol

Accepted Answer

The size doesn't matter, I bought the cheapest one and took the biomax out of the bag so they fit-for a 3 gallon from the 70, divide the biomax bag equally into about 12 piles, then put one of the piles into your filter and save the rest (as you will want to change them out eventually) this should give you enough filtration for a 3 gallon with out overdoing it.

ASIN	B0006JLO5K
Allergen Information	Nut Free
Best Sellers Rank	#95,378 in Pet Supplies ( See Top 100 in Pet Supplies ) #6,555 in Aquarium Accessories
Brand Name	Fluval
Customer Reviews	4.7 4.7 out of 5 stars (2,302)
Global Trade Identification Number	00015561113700
Included Components	All Items in Description
Item Form	Insert
Item Type Name	Aquarium Filter Media
Item Weight	0.01 Ounces
Liquid Volume	20 Gallons
Manufacturer	Rolf C. Hagen (USA) Corp.
Manufacturer Part Number	A1370A1
Model Number	A1370A1
Number of Items	1
Number of Packs	1
Pet Type	Fish
Target Species	Fish
UPC	015561113700
Unit Count	1 Count

Aquaclear Aqua Clear 20 BioMax, Aquarium Filter Replacement Media, A1370A1

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