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Pond
Marine
Freshwater
Aquatics Services

Pond
Marine
Freshwater
Aquatics Services

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Koi Foods
Winter Pond Fish Foods

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KH Buffer
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Probiotic

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Medikoi Probiotic Growth 10kg

£179.99

Medikoi Probiotic Growth 5kg

£97.99

Medikoi Probiotic Growth 3kg

£62.99

Medikoi Probiotic Growth 1.75kg

£41.99

Medikoi Probiotic Growth Junior 3mm 5kg

£97.99

Medikoi Probiotic Growth Junior 3mm 3kg

£62.99

Medikoi Probiotic Growth Junior 3mm 1.75kg

£41.99

Medikoi Probiotic Growth Junior 3mm 700g

£19.99

Medikoi Probiotic 6mm 10kg

£167.99

Medikoi Probiotic 6mm 5kg

£95.99

Medikoi Probiotic 6mm 3kg

£62.99

Medikoi Probiotic 6mm 1.75kg

£41.99

Medikoi Probiotic 6mm 750g

£19.99

Medikoi Growth Food 10kg

£139.99

Medikoi Growth Food 5kg

£79.99

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About Us

Purewater Diagnostics is a UK-based aquatic specialist supplying pond, aquarium, and marine equipment alongside expert water testing solutions. Known for competitive pricing and reliable service, we support hobbyists and professionals with filtration systems, treatments, and maintenance essentials to keep water environments healthy and balanced.

Address: Purewater Diagnostics, 14 Gordon Close, Haywards Heath, West Sussex, RH161ER

Our Services

Water testing & diagnostics
Pond Construction
Aquarium Maintenance
Filtration Upgrades
Equipment Repairs & Servicing
Fish & Aquarium Removals
Algae Control & Green Water Treatment
Pond Maintenance (Seasonal / Monthly)
Koi Health & Disease Treatment
Emergency Call-Out Services

Customer Services

My Account
Reward Points
Help Centre
FAQs
Contact Us

Tools

Help Guides
Alkalinity Converter
Volume Calculator
Aquarium Log
Salinity Calculator

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