Review on Honritone 7 Inch Ring by 18 Inch Long Filter Sock Bags - 1 Micron, 5 Micron, 50 Micron, 100 Micron - Aquarium Felt Fabric Sump Filter Bag - 1 Pack by Dawn Sherman

Good sock, good construction! Thick material and welded construction. I would suggest rinsing it really well before introducing it to your aquarium. We saw small particles floating around in our tank for over 24 hours! We use this for our 75 gallon planted tank and it needs to be flushed about every 5-7 days. Maybe I'll choose 50 microns next time. It doesn't need to be bleach washed like most people assume, it will only speed up possible wear and tear. Just gently turn the sock over and rinse the garden hose with a jet of water! It takes me less than 5 minutes to remove stuck debris. No, it's not entirely white, but what's the point of disinfecting the bag if you risk introducing chemicals into the aquarium! Will definitely buy again.