NT Labs Mediclay is a high-purity montmorillonite clay powder that improves water clarity, reduces algae, and supports the overall health and appetite of Koi. Ideal for regular pond maintenance or during periods of fish stress or recovery, it works by encouraging beneficial bacteria while limiting waste, algae, and pollutants.

Key Features:

• Available in 1.5kg, 5kg, and 20kg sizes
• High-grade, ultra-fine powdered montmorillonite clay
• Improves Koi appetite and vitality
• Clears water and reduces algae growth
• Supports nitrifying bacteria in the pond
• Compatible with salt and all water temperatures
• Use weekly for clarity or daily when fish are unwell

NT Labs Mediclay is easy to dose and safe for routine use in Koi ponds. For general water clarity, apply 100g per 4,500 litres weekly. If your fish show signs of ill health or physical damage, apply 200g per 4,500 litres weekly. Do not use while medicating the pond. Use alongside dechlorinators when topping up water if needed.

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.