• Featured products
    • Fish Food
      • OF® Pro Series
        • About
        • AR-G1 (Pro Arowana Carnivorous Pellet)
        • AR-G2 (Pro Arowana Intense Colour)
        • BF-G1 (Pro Bottom Feeder)
        • DS-G1 (Pro Discus)
        • FH-G1 (Pro Head)
        • FH-G1 (Pro RedSyn)
        • GF-G1 (Pro GoldFish)
        • BT-G1 (Pro Betta)
        • MN-G1 (Pro Miniature Fish)
        • SA-G1 (Pro Monster Fishes Carnivore)
        • MF-G1 (Pro Marine Fish)
        • TT-G1 (Pro Terrapins & Turtles Pellet)
      • OF® Kirameki Koi & Goldfish Feed
        • Koi Growth
        • Koi Intense Colour
        • Koi Spirulina
        • Koi Wheatgerm
        • Koi Economy
        • Goldfish Oranda
        • Goldfish Lionhead
      • OF® Insta Fresh
        • About
        • Prime Krill
        • Superior Bloodworm
        • Finest Arctic Shrimp
        • Quality Artemia Brine Shrimp
        • Premium Cyclops
        • FAQ
    • Medication
      • Ocean Free® Special Arowana Medication
      • Ocean Free® ‘0’ Arowana Disease
      • Ocean Free® ‘0’ Anchor Worm & Fish Lice
      • OF® 3rd Generation Yellow Powder
    • Water Conditioner
      • OF® ‘0’ Arowana Care
      • OF® ‘0’ Fish Care
      • OF® T1 Herbal Water Conditioner
      • OF® T2 Herbal Water Conditioner
      • OF® T3 Herbal Water Conditioner
      • OF® T4 Herbal Water Conditioner
    • Filter
      • OF® Hydra (Powered by Hydro-Pure Technology)
        • Hydro-Pure Technology
        • OF® Hydra Filtron
        • Hydra Aquatic Depurator
        • OF® Hydra Nano Plus
        • OF® Hydra Stream
        • OF® Hydra Stream System
        • OF® Hydra Prime System 3
        • OF® Hydra Prime System V1
        • FAQ
      • OF® Surfclear Surface Skimmer
    • Filter Medium
      • OF® 3DM Filter Medium
      • OF® 3DM Bacto-Rock
      • OF® 3DM Bacto-Sand
      • OF® Activa Block
    • Pump
      • AquaZonic® Sumo G2
      • AquaZonic® Amphi G2
      • AquaZonic® Amphi Plus
      • AquaZonic® Primal 9000
      • AquaZonic® Vormax Water Pump
      • AquaZonic® Spartan
    • LEDs and Light Sets
      • OF® Supreme Arowana LED
      • AquaZonic® Spectra Miracle LED
      • AquaZonic® Spectra Planted LED
      • AquaZonic® Spectra Reef LED
      • AquaZonic® Evo Slim LED
    • Aquarium Tank
      • OF® Betta Flora Tank
      • OF® Curvo Tank
      • OF® My Little Ocean
      • OF® Nano Marine
      • OF® Nano Space
      • OF® Nano Planted
      • Classica® ECO Aquarium
      • Classica® Qubic Lifestyle Aquarium
    • Ponddpro® (Pond)
      • EcoFresh Automatic Pond Feeder
    • RevoReef® (Marine)
      • Salt
      • Reef Supplements
      • 3DM Reef-Sand
      • 3DM Reef-Rock
      • Infinity Reef Tank
      • Refractometer
    • Pets World
      • Cats
        • Wet Cat Food
        • Dry Cat Food
        • Cat Litter
      • Dogs
        • Dry Dog Food
        • Dog Biscuits
        • Dog Shampoo
        • Dog Pet Sheet
      • Small Animals
        • Dry Food
        • Wood Flakes
  • Catalogue 2021
  • Services
  • Visitor’s Info
    • Operating Hours
    • Driving Here
    • Free Shuttle Bus
    • Online N Retail Stores
    • Café
    • Fish Spa
    • Long Kang Fishing
    • Farm Tour
    • Creative Aquatic Minitank
  • Fishkeeping Articles
    • Flow Rate Calculator
    • Fish Stocking Calculator
    • Arowana
      • About Arowana
      • My First Arowana
      • Common Arowana Diseases
      • What Is The Lateral Line System?
    • Freshwater
      • About Freshwater Aquarium
      • My First …
        • Quick Guide to Setting Up First Aquarium
        • My First Freshwater Aquarium
        • My First Planted Tank
        • My First Betta
        • My First Guppy
      • Common Aquarium Fish Diseases
      • Overfeeding
      • Why Is My Aquarium Water Cloudy?
    • Marine
      • About Marine Aquarium
Hit enter to search

OF® Activa Block

Home Products Filter Medium OF® Activa Block
Categories
Fish Food
OF® Pro Series
About
AR-G1 (Pro Arowana Carnivorous Pellet)
AR-G2 (Pro Arowana Intense Colour)
BF-G1 (Pro Bottom Feeder)
DS-G1 (Pro Discus)
FH-G1 (Pro Head)
FH-G1 (Pro RedSyn)
GF-G1 (Pro GoldFish)
BT-G1 (Pro Betta)
MN-G1 (Pro Miniature Fish)
SA-G1 (Pro Monster Fishes Carnivore)
MF-G1 (Pro Marine Fish)
TT-G1 (Pro Terrapins & Turtles Pellet)
OF® Kirameki Koi & Goldfish Feed
Koi Growth
Koi Intense Colour
Koi Spirulina
Koi Wheatgerm
Koi Economy
Goldfish Oranda
Goldfish Lionhead
OF® Insta Fresh
About
Prime Krill
Superior Bloodworm
Finest Arctic Shrimp
Quality Artemia Brine Shrimp
Premium Cyclops
FAQ
Medication
Ocean Free® Special Arowana Medication
Ocean Free® '0' Arowana Disease
Ocean Free® '0' Anchor Worm & Fish Lice
OF® 3rd Generation Yellow Powder
Water Conditioner
OF® '0' Arowana Care
OF® '0' Fish Care
OF® T1 Herbal Water Conditioner
OF® T2 Herbal Water Conditioner
OF® T3 Herbal Water Conditioner
OF® T4 Herbal Water Conditioner
Filter
OF® Hydra (Powered by Hydro-Pure Technology)
Hydro-Pure Technology
OF® Hydra Filtron
OF® Hydra Aquatic Depurator
OF® Hydra Nano Plus
OF® Hydra Stream
OF® Hydra Stream System
OF® Hydra Prime System 3
OF® Hydra Prime System V1
FAQ
OF® Surfclear Surface Skimmer
Filter Medium
OF® 3DM Filter Medium
OF® 3DM Bacto-Rock
OF® 3DM Bacto-Sand
OF® Activa Block
Pump
AquaZonic® Sumo G2
AquaZonic® Amphi G2
AquaZonic® Amphi Plus
AquaZonic® Primal 9000
AquaZonic® Vormax
AquaZonic® Spartan
LEDs and Light Sets
OF® Supreme Arowana LED
AquaZonic® Spectra Miracle LED
AquaZonic® Spectra Planted LED
AquaZonic® Spectra Reef LED
AquaZonic® Evo Slim LED
Aquarium Tank
OF® Betta Flora Tank
OF® Curvo Tank
OF® My Little Ocean
OF® Nano Marine
OF® Nano Space
OF® Nano Planted
Classica® ECO Aquarium
Classica® Qubic Lifestyle Aquarium
Ponddpro® (Pond)
EcoFresh Automatic Pond Feeder
RevoReef® (Marine)
Salt
Reef Supplements
3DM Reef-Sand
3DM Reef-Rock
Infinity Reef Tank
Refractometer

OF® ACTIVA BLOCK

Super-Charged Activated Carbon Block

OF® ACTIVA BLOCK is a super-charged activated carbon block designed to maximize absorption of aquarium water coloration, odours, toxic pollutants (e.g. insecticides and chemicals) and medication. Ideal for all types of aquarium.

Highly porous natural Bamboo Activated Carbon and Sepiolite Clay minerals are precision-cut into a Cuboidal Matrix Design featuring 1400 micro-tunnels; this greatly increases its surface area and boosts its ability to draw out toxic pollutants from your aquarium water quickly and efficiently. As a result, this little 500g cube packs the equivalent absorptive capacity of 20kg worth of regular activated charcoal powder, or 40 times its body weight in absorptive power!

FEATURES

Advantages at a Glance.

  • Results equivalent to 20kg (500g) or 10kg (250g) of Activated Carbon
  • Rapid absorption of toxic pollutants, colouration, odours and medication in your aquarium.
  • No pre-rinsing and holding bag required.
  • No precipitation and staining unlike activated carbon.
  • Freshwater and Marine.

Rapid Absorption.

The Cuboidal Matrix Design features at least 1400 micro-tunnels, greatly increasing the capability to absorb toxic pollutants!

More Effective. Less Mess.

Comparison of the precipitation and clouding of water caused by regular activated carbon granules versus the clean and clear water of ACTIVA BLOCK.

Easy to Stack.

ACTIVA BLOCK comes with 2 end caps designed to allow 2 units to interlock, which makes stacking easy and convenient!

APPLICATIONS

ACTIVA BLOCK can be used in any fish tank/sump tank or any water holding tanks that you wish to remove toxic pollutants/colouration/odours/medication.

HOW TO USE

This eco-friendly block works best in aquariums with efficient circulation.

  1. Check that both end caps are in place.
  2. Place ACTIVA BLOCK in your fish tank/sump tank or any water holding tanks that you wish to remove toxic pollutants/colouration/odours/medication.
  3. There will be rapid sizzling for the first 30 seconds as microbubbles are released into the air due to the micro-cavities being filled with water.
  4. ACTIVA BLOCK works best with circulating water and its effectiveness can last up to 2 months depending on bio-load.
  5. It can also be used to keep food fresh by absorbing ethylene gas – try placing it in your fruit bowl and your fruit will stay fresher for longer!

SPECIFICATION

Type Dimension Weight Treats up to (L) Pcs
Large L100xW100xH100mm 500g 200L 1
Small L100xW100xH50mm 250g 100L 1

ACTIVA BLOCK IN ACTION!

COMPANY (Yi Hu Fish Farm Trading)
  • About Us
  • Career
  • News and Updates
  • Contact Us
  • Privacy Policy (PDPA)
OUR PARTNERS
  • Singapore Store Locator
  • Overseas Distributors
RELATED ENTITIES
  • Qian Hu Corporation Limited (HQ)
  • Qian Hu Fish (Livestock)
  • Wan Hu (Arowana)
  • Qian Hu China
  • Qian Hu Malaysia
  • Qian Hu Thailand
  • P.T. Qian Hu Joe Aquatics Indonesia
  • Tat Leng (Plastics)
SHOP ONLINE
  • qianhushop.sg
  • Shopee 
BRANDS WEBSITE
  • Aristo-Cats Yi Hu
STAY CONNECTED WITH US
    • Facebook (Qian Hu Corporation)
    • Facebook (OF Hydra)
    • Facebook (OF Hydra UK)
    • Facebook (Qian Hu Aquaculture)
  • Instagram
  • Telegram
  • YouTube 
  • LinkedIn
  • TikTok
  • Twitter

Brands 

Copyright© 2017 Yi Hu Fish Farm Trading Pte Ltd. All Rights Reserved.

 Web Design By Firstcom Solutions