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Color:White Directions The breathing biological Ceramic Column may be recharged (recharged by cleaning monthly). After cleaning be sure to re-colonize the Biological Ceramic Rings by soaking in nitrifying bacteria for immediate nitrification. For best results change the rings every 4-6 months. Place at the final stage of filtration direct into your pond. Use 0.5~1 kg for up to 150 gallons of pond water.
K**H
Really works!
After trying numeroys different filters nothing made the cloudiness go away. Until I used these with the ceramic balls. Tank was crystal clear within days!!
K**T
Good for fish tank
Fish tank water is clean so far after putting these in. It indicates they will filter out ammonia which it did, will but strip to test. So far everything is good.
F**
Rinse first before use
Very good filter media make my fishtank crystal clear
K**R
Very useful.
Very useful.
N**S
Works perfect in my shrimp tank
Wonderful product, especially for those looking for something alternative to a traditional filter pump.
S**N
Decoration?
I bought these thinking they’d tide the tank over until I replaced a broken filter they did absolutely nothing.
T**M
Great for nano fish tank
Great little filtration system for my 5 gallon fish tank
N**I
Good
Very good product
Trustpilot
2 weeks ago
2 months ago