Shop
My Account
Cart
My Wishlist
Contact Us
Log In
Register

Brands
- Abyzz
- Adaptive Reef
- Aquaforest
- Aqua Illumination
- Aqua Medic
- Arcadia
- Art Reef
- Auto Aqua
- BCUK
- Benereef
- Boyd
- Bubble Magus
- Caribsea
- Clean Up Crew
- Coral RX
- Coral Thrive
- D-D
- Dastaco
- Deltec
- Dr Tims
- Easy Reef
- Ecosystems
- Ecotech
- Eheim
- Elos
- Evolution Aqua
- Fauna Marin
- Flipper
- Focustronic
- Fritz
- GHL
- Giesemann
- Hanna
- Hikari
- Hydospace
- ITC Aquatics
- Jecod
- Kamoer
- Kessil
- Korallen Zucht
- Marine Pure
- Maxspect
- Modern Reef
- Nature’s Ocean
- Neptune Apex
- NT Labs
- Nutri Sea
- Nyos
- Ocean Nutrition
- Orijen
- Pax Bellum
- PE Mysis
- Philips
- PolypLab
- Qium
- Quantum
- Real Reef Rock
- Red Sea
- Reef Kinetics
- Reef Octo
- Reef Zlements
- ReefBrite
- Reeflowers
- Rowa
- Royal Exclusive
- Salifert
- Seachem
- Seneye
- Sera
- Sicce
- Teco
- Theiling
- TMC
- Triton
- Tropic Marin
- Troptronic
- Tunze
- Two Little Fishies
- UltraReef
- Underwater Creations
- Vitalis
- Xepta
- Xodis
Additives
- PRODUCTS
- Brands
  - Aqua Medic
  - Boyd
  - Coral RX
  - Dr Tims
  - Fauna Marin
  - Fritz
  - Joes Juice
  - Korallen Zucht
- Brands
  - Modern Reef
  - NT Labs
  - Nyos
  - PolypLab
  - Qium
  - Quantum
  - Red Sea Reef Care
- Brands
Aquariums
Equipment
- Protein Skimmers
  - Red Sea
  - Deltec
  - Nyos
  - Reef Octopus
  - Bubble Magus
  - TMC
  - Tunze
  - Aqua Medic
  - Rossmont
  - Maxspect
  - Ultra Reef
  - Korallen Zucht
  - Royal Exclusive
  - Skimmer Accessories
- Lighting
  - Ecotech
  - Aqua Illumination
  - Red Sea
  - Maxspect
  - Kessil
  - GHL
  - Giesemann
  - Philips
  - TMC
  - Tunze
  - T5 Tubes
- Monitor & Control
  - Apex
  - GHL
  - Seneye
  - Focustronic
  - ReefBot
  - Aqua Medic
  - Xepta
- Pumps
- Heating & Cooling
- Other Products
Food
- PRODUCTS
- BRANDS
  - Vitalis
  - Ocean Nutrition
  - TMC
  - PolypLab
  - Easy Reef
  - Mysis RS
  - NT Labs
  - PE Mysis
  - Two Little Fishies
  - Benereef
  - Hikari
  - Coral Thrive
Maintenance
- PRODUCTS
- Salt
  - Red Sea
  - D-D
  - Tropic Marin
  - Reeflowers
  - Quantum
  - Fauna Marin
  - Korallen Zucht
- Test Kits
  - Salifert
  - Nyos
  - Fauna Marin
  - Hanna
  - Red Sea
  - Elos
  - Triton
  - Tropic Marin
  - ICP Tests
  - salinity Testing
- Substrates
  - Red Sea
  - Caribsea
  - Aqua Medic
  - Reeflowers
  - Natures Ocean
  - Korallen Zucht
  - TMC
- Reverse Osmosis
- Cleaning Supplies
  - Aqua Medic
  - D-D
  - Flipper
  - Seachem
  - Tunze
- Rock & Inverts
  - Art Reef
  - Real Reef
  - D-D
  - TMC
  - Caribsea
  - Two Little Fishies
  - Inverts
- Filter & Reactor media
- Tank Covers
  - D-D
  - Red Sea

API Calcium Test Kit

Home
Shop
Maintenance, Test Kits
API Calcium Test Kit

Related products

Hanna, Test Kits
Hanna HI736-11 Phosphorus Ultra Low Range Checker® HC Calibration Check Set

0 out of 5

£20.99 inc. VAT

Add to basket

Add to wishlist

Quick View
ICP Tests, Maintenance, Test Kits
Reef Zlements ICP-OES Aquarium Analysis Saltwater Single

0 out of 5

£25.99 inc. VAT

Add to basket

Add to wishlist

Quick View
Fauna Marin, Test Kits
Fauna Marin AquaHomeTest KH: Alkalinity-Test for seawater-aquarium

0 out of 5

£23.49 inc. VAT

Add to basket

Add to wishlist

Quick View
ICP Tests, salinity Testing, Test Kits, Triton
Triton N-DOC Lab Test

0 out of 5

£31.49 inc. VAT

Add to basket

Add to wishlist

Quick View
Fauna Marin, Test Kits
Fauna Marin dkH Test Kit Refill

0 out of 5

£11.99 inc. VAT

Add to basket

Add to wishlist

Quick View
Hanna, Test Kits
Hanna HI736 Phosphorus Checker Handheld Colorimeter

0 out of 5

£69.99 inc. VAT

Add to basket

Add to wishlist

Quick View
Coral Mounts and Frag Plugs, Fragging, fragging, Maintenance
Polyplab Pro Glue Gel 25x4g Grenade

0 out of 5

£44.79 inc. VAT

Add to basket

Add to wishlist

Quick View
Maintenance, Salt
Modern Reef Professional Reef Salt 22kg

0 out of 5

£124.99 inc. VAT

Add to basket

Add to wishlist

Quick View
Hanna, Test Kits
Hanna HI772 Marine Alkalinity (dKH) Checker Handheld Colorimeter

0 out of 5

£69.99 inc. VAT

Add to basket

Add to wishlist

Quick View
Coral Mounts and Frag Plugs, fragging, Fragging, Maintenance, Useful Items
Maxspect Coral Tool Kit

0 out of 5

£89.99 inc. VAT

Add to basket

Add to wishlist

Quick View

The Number 1 Online Retailer For All Your Aquatic Needs

questions?

01277 211433

Account

My Account
Track Your Order
Delivery Information

FAQs
Privacy Policy
Terms And Conditions

About

About H2O Aquatics
Contact Us
Price Match

Retail Shop Address

H2O Aquatics Limited
13–15 Ongar Road
Brentwood
Essex
CM15 9AU

© H2O Aquatics Ltd | Registered in England & Wales | Company no. 07335476 | VAT no. GB 995 7702 59
Powered by Footprint Digital

Payment Gateways

You've just added this product to the cart:

Brands
- Abyzz
- Adaptive Reef
- Aquaforest
- Aqua Illumination
- Aqua Medic
- Arcadia
- Art Reef
- Auto Aqua
- BCUK
- Benereef
- Boyd
- Bubble Magus
- Caribsea
- Clean Up Crew
- Coral RX
- Coral Thrive
- D-D
- Dastaco
- Deltec
- Dr Tims
- Easy Reef
- Ecosystems
- Ecotech
- Eheim
- Elos
- Evolution Aqua
- Fauna Marin
- Flipper
- Focustronic
- Fritz
- GHL
- Giesemann
- Hanna
- Hikari
- Hydospace
- ITC Aquatics
- Jecod
- Kamoer
- Kessil
- Korallen Zucht
- Marine Pure
- Maxspect
- Modern Reef
- Nature’s Ocean
- Neptune Apex
- NT Labs
- Nutri Sea
- Nyos
- Ocean Nutrition
- Orijen
- Pax Bellum
- PE Mysis
- Philips
- PolypLab
- Qium
- Quantum
- Real Reef Rock
- Red Sea
- Reef Kinetics
- Reef Octo
- Reef Zlements
- ReefBrite
- Reeflowers
- Rowa
- Royal Exclusive
- Salifert
- Seachem
- Seneye
- Sera
- Sicce
- Teco
- Theiling
- TMC
- Triton
- Tropic Marin
- Troptronic
- Tunze
- Two Little Fishies
- UltraReef
- Underwater Creations
- Vitalis
- Xepta
- Xodis
Additives
- PRODUCTS
- Brands
  - Aqua Medic
  - Boyd
  - Coral RX
  - Dr Tims
  - Fauna Marin
  - Fritz
  - Joes Juice
  - Korallen Zucht
- Brands
  - Modern Reef
  - NT Labs
  - Nyos
  - PolypLab
  - Qium
  - Quantum
  - Red Sea Reef Care
- Brands
Aquariums
Equipment
- Protein Skimmers
  - Red Sea
  - Deltec
  - Nyos
  - Reef Octopus
  - Bubble Magus
  - TMC
  - Tunze
  - Aqua Medic
  - Rossmont
  - Maxspect
  - Ultra Reef
  - Korallen Zucht
  - Royal Exclusive
  - Skimmer Accessories
- Lighting
  - Ecotech
  - Aqua Illumination
  - Red Sea
  - Maxspect
  - Kessil
  - GHL
  - Giesemann
  - Philips
  - TMC
  - Tunze
  - T5 Tubes
- Monitor & Control
  - Apex
  - GHL
  - Seneye
  - Focustronic
  - ReefBot
  - Aqua Medic
  - Xepta
- Pumps
- Heating & Cooling
- Other Products
Food
- PRODUCTS
- BRANDS
  - Vitalis
  - Ocean Nutrition
  - TMC
  - PolypLab
  - Easy Reef
  - Mysis RS
  - NT Labs
  - PE Mysis
  - Two Little Fishies
  - Benereef
  - Hikari
  - Coral Thrive
Maintenance
- PRODUCTS
- Salt
  - Red Sea
  - D-D
  - Tropic Marin
  - Reeflowers
  - Quantum
  - Fauna Marin
  - Korallen Zucht
- Test Kits
  - Salifert
  - Nyos
  - Fauna Marin
  - Hanna
  - Red Sea
  - Elos
  - Triton
  - Tropic Marin
  - ICP Tests
  - salinity Testing
- Substrates
  - Red Sea
  - Caribsea
  - Aqua Medic
  - Reeflowers
  - Natures Ocean
  - Korallen Zucht
  - TMC
- Reverse Osmosis
- Cleaning Supplies
  - Aqua Medic
  - D-D
  - Flipper
  - Seachem
  - Tunze
- Rock & Inverts
  - Art Reef
  - Real Reef
  - D-D
  - TMC
  - Caribsea
  - Two Little Fishies
  - Inverts
- Filter & Reactor media
- Tank Covers
  - D-D
  - Red Sea

Shop
My Account
Cart
My Wishlist
Contact Us
Log In
Register