Please note: You are now making an order on behalf of a user.
Deltec Kalkwasser Stirrer
Deltec Kalkwasser Stirrer
Deltec Kalkwasser Stirrer
  • Deltec Kalkwasser Stirrer
  • Deltec Kalkwasser Stirrer
  • Deltec Kalkwasser Stirrer
Product Code: DD-DT-KM In Stock
Share it

Deltec Kalkwasser Stirrer

0 Review(s)
Reward Points Reward Points
You will earn 447 Points
Select option:
Click & collect available from our showroom Visit our showroom
Add to My Save List

The Deltec Kalkwasser Stirrer works to provide your aquarium with a healthy balance of nutrients and compounds.

Please note expected delivery Dispatch may take 5-10 Days

Livestock arrives in and out of stock very regularly, depending upon availability of the item from the source. The more rare and expensive items are often difficult to hold in stock, and can take time to source, so we generally require a deposit to locate and purchase the extremely rare items
Free Delivery Free Delivery On dry goods over £100
Price Match Promise Price Match Promise We will beat any competitor
Speak to an expert Speak to an expert 01446 737210
Visit our showroom Visit our showroom Feel free to visit us!

Kalkwasser - Translates from the German word for limewater and is a solution made by dissolving Calcium Hydroxide in water. The resultant fresh solution is alkaline with a pH of 12.4 and contains a ready supply of both Calcium ions and Carbonate ions. The solution reacts readily with CO2 in the atmosphere to form calcium carbonate and so it must be made in a relatively airtight environment which is where the Kalkwasser Stirrer comes in to play.

R.O water is pumped through a bed of unreacted calcium hydroxide in the bottom of the reactor which is dissolved by the stirring action until the solution becomes concentrated preventing further dissolving. The clear Kalkwasser solution decants by gravity off the top of the reactor and into the sump or tank.

Model Code Aquarium Dimension (LxWxH) Capacity (lph)
KM500 87001 1500L 130 x 190 x 480mm 5
KM500S 87002 6000L 220 x 220 x 480mm 10
KM800 87003000 >6000L 375 x 430 x 800mm 30


Need more information on the Deltec Kalkwasser Stirrer? Why not contact the Rock N Critters team today? Our helpful team will be more than happy to help with any queries you may have.


Can be stood in or outside of sump
Must gravity feed back into the water supply
Feed with R.O water from a reservoir
Use in conjunction with a top up system

Our Reward Scheme

Earn points as you spend! £1 = 1 point. Points can be redeemed against future purchases. Sign Up For An Account
Register an account on the Rock ‘N’ Critters website and order online with confidence.
Every time you make a purchase, you earn points – 1 point for every pound spent!
The points you earn will give you money off future Rock ‘N’ Critters purchases!