Same 100% Natural blend as our 1 oz Sludge Buster Blocks
3 gram blocks made to distribute easier and cover more surface area!
Perfect for aquariums and smaller water features!
One 2.5 lb jar can treat up to 15,000 Gallons!
- Eliminates Bottom Sludge
- Clears Murky Water
- Reduces Foul Odors
- Eliminates Toxins