
Hanna Instruments-3823 Combination test kit for Aquaculture
Marine science chemical test kit to test and measure key marine parameters such as Alkalinity, Carbon Dioxide, Dissolved Oxygen, Hardness, pH and Salinity.
Aquaculture Test Kit
The Hanna Instruments-3823 provides users with the most important test parameters for aquaculture applications: alkalinity, carbon dioxide, dissolved oxygen, hardness, pH and salinity.
Each of these parameters plays a critical role in the delicate balance of the aquatic environment: alkalinity acts as a stabiliser for pH; carbon dioxide must be monitored because of its toxic effects on fish (every species can tolerate different levels of CO2); oxygen levels affect fish respiration and incorrect concentrations can slow down their growth rate; hardness is monitored because it diminishes the toxicity level of ammonia; pH also is measured to determine the toxicity level of the water; salinity is important because of its relation to dissolved oxygen.
Order information
The Hanna Instruments-3823 test kit is supplied with the following:
- Reagents necessary to perform over 100 tests for each parameter
- Electronic pH tester
- Rugged carrying case
- Instruction manuals

Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.