Having set up your marine aquarium the water values need to be measured between daily and weekly, to find out how well the aquarium is developing and when it is ready for the animals to be added. The carbonate hardness indicates the pH stability of the water. It should be between 7 and 10 °dKH. Ammonium is the first stage of the nitrogen decomposition and it increasingly changes into toxic ammonia with pH values above 7. The ammonium content must not exceed 0.25 mg/l. The nitrite value indicates whether this toxic compound for fish is present in the aquarium. Nitrite should always have a level below 0.2 mg/l. Nitrate and phosphate serve as food for algae. Nitrate values over 20 mg/l and phosphate values over 0.1 mg/l can lead to excessive algae growth. Many coral species grow significantly better with low nitrate and phosphate amounts since endosymbiotic algae (zooanthellae) live in their tissues. 

Key Features:

• 6 water tests to easily and precisely determine the most important water values in marine water, especially for fish aquariums
• Add colour indicator and compare on colour chart or count the drops until the colour changes
• Contains tests for carbonate hardness, pH value, ammonium/ammonia, nitrite, nitrate and phosphate
• Comparator system facilitates the colour comparison and takes the inherent water colouring into account
• Contents: 6 water tests, comparator block, 3 cuvettes, syringe, measuring spoon, colour charts, analysis record sheets and instructions

Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.