💧 Crystal-clear water, zero compromises.
Kolar Labs Crystal Cal Activated Carbon delivers 15 lbs of FCC-certified, laboratory-grade granular activated charcoal designed specifically for aquarium filtration. Its optimized pore structure rapidly removes cloudiness, odors, and discoloration overnight. Compatible with all filter types, it ensures efficient water purification with easy dosing and maintenance, making it the go-to choice for professional-grade aquatic care.
| Item Weight | 12 ounces |
| Liquid Volume | 5 Gallons |
| Target Species | Fish |
| Item Form | Liquid, Granules |
M**X
A must for clean water
This is great value filtering media .it works perfect at removing foul smell from aquarium and water is crystal clear. Clean water - healthy fish
E**.
Perfect
works well in clearing your aquarium water
G**K
awesome
great product
M**B
Raw material works!
Simple DIY carbon for making filters myself.
J**.
One of the best values in activated carbon
Good value. Not the cheapest, but it's also one of the highest quality, made with lignite and not cheap coconut fiber. Won't cause HLLE in fish. Also can be used in rodi Filter.
T**P
Excellent value
After wasting so much $ at the large “P” stores on fish aquarium essentials, starting to get items in bulk. Excellent charcoal.
C**P
Works good for my purposes
I bought this as I couldn’t find acid free carbon. I soaked it over overnight in water and baking soda to neutralize the acid. I then dried it in a dehydrator for a few hours. It worked good for lowering the VOCs for my 3D printer.
G**0
Price
Works well
Trustpilot
1 day ago
2 weeks ago
