Aquarium Calcium Reactors

Reef By TMC

Include 2 products starting from £171

View products
Reef By TMC

Elos

Include 2 products starting from £600

View products
Elos

Aqua Medic

Include 51 products starting from £2

View products
Aqua Medic

Hydor

Include 0 products starting from £0

View products
Hydor

Bubble Magus

Include 3 products starting from £25

View products
Bubble Magus

Deltec Reactors

Include 18 products starting from £2

View products
Deltec Reactors

TMC v2 Reactors

Include 1 products starting from £82

View products
TMC v2 Reactors

GroTech

Include 0 products starting from £0

View products
GroTech

Media

Include 6 products starting from £9

View products
Media

Main Categories


A calcium reactor offers a simple and convenient solution for maintaining calcium and alkalinity in your reef tank. After the initial setup, the calcium reactor requires minimal maintenance. A calcium reactor is almost a necessity for tanks heavily stocked with stony coral where calcium and alkalinity demands are high.


Why our delivery is awesome!

Just a few reasons why Charterhouse are the industry leaders

1 Hour Delivery Slot

We provide a 1 hour delivery slot for all Premium Next Day delivery services. No more waiting in all day.

SMS And Email Notification

Your delivery slot will be text and emailed to you. You can then submit a different day or request the parcel is left with a neighbour.

Weekend Deliveries

We now offer deliveries on both days of the weekend. These services can be selected at checkout.

Free Shipping Over £50

Spend over £50 on your order and qualify for free shipping. Next day and timed services available.

Find out more

Pay by Finance

We offer flexible monthly finance options. Credit is subject to application and status.

Find out more

Reward Points

As a thank you, we run the Charterhouse Points scheme. Earn points on every order.

Find out more