Ultimate Aquarium Test Kit Bundle

Complete Ultimate Saltwater Aquarium Test Kit Bundle – Digital Accuracy for Reef Tanks

  If your reef tank could talk, it’d probably beg you to stop guessing your parameters. The Ultimate Saltwater Aquarium Test Kit Bundle takes the headache out of maintaining pristine water quality. We’ve combined the most trusted tools in the hobby—from Hanna Instruments, Salifert, and Milwaukee Instruments—into one powerhouse bundle. Whether you're managing a delicate SPS reef or a fish-only system, this kit gives you pro-grade testing at your fingertips (without requiring a degree in marine chemistry).

What’s Inside the Ultimate Aquarium Test Kit Bundle?

• Hanna Instruments HI736 – Ultra Low Range Phosphorus Checker HC
• Hanna Instruments HI755 – Alkalinity Checker HC (ppm)
• Hanna Instruments HI782 – High Range Nitrate Checker HC
• Milwaukee Instruments MA887 – Digital Seawater Refractometer
• Salifert Calcium Test Kit
• Magnesium Test Kit by Salifert
• Reagent Packs – HI782-25 (Nitrate), HI772-26 (Alkalinity), HI93713-01 (Phosphate)

These kits aren’t gimmicks—they’re the same maintenance tools used by pro reefers, coral farmers, and aquarium labs. We’ve tested them ourselves, and yes, they’ve saved us from more than one phosphate-induced algae outbreak. Let’s face it—color charts and vague reagent kits have their place, but this isn’t the 90s. Digital checkers like the Hanna HI series provide actual numbers, not "kind of blue but maybe purple." And if you're tired of sticking your face into a test tube under bad lighting? This bundle's for you. Each test kit and tool measures a single critical parameter with accuracy and repeatability:

• Phosphorus (HI736) – Prevents algae explosions and coral stress
• Nitrate (HI782) – Keeps nutrient levels in check to avoid outbreaks of dinoflagellates
• Alkalinity (HI755) – Maintains buffering capacity for stable pH and coral growth
• Calcium (Salifert) – Ensures proper skeletal development in LPS and SPS corals
• Magnesium (Salifert) - This Salifert kitreads Magnesium levels in your water samples, good for coral growth
• Refractometer (MA887) – Calibrated seawater readings for stable tank conditions

HI736 Ultra Low Range Phosphorus Checker (Hanna)

When to Use: 1–2 times per week Steps:

1. Fill cuvette with 10 mL of tank water.
2. Zero the checker with the cuvette.
3. Add reagent packet, cap, and shake.
4. Insert back into checker, press button, and read the phosphorus value (ppb).

Hanna HI782 High-Range Handheld Nitrate Checker (Hanna)

When to Use: Once or twice a week (based on the bio-load amount) Steps:

1. Fill cuvette with sample water.
2. Zero the checker.
3. Add HI782-25 reagent packet and shake well.
4. Insert cuvette into the unit and get a digital nitrate reading (ppm).

Hanna Instruments HI755 Alkalinity Handheld Colorimeter Checker

When to Use: 2–3 times per week Steps:

1. Add 10 mL of water you want to test to the basin.
2. Insert and zero the unit.
3. Add one packet of HI772-26 reagent.
4. Shake gently and insert for final reading (ppm CaCO3).

Milwaukee MA887 Digital Refractometer

When to Use: Every time you do a water change or top-off Steps:

1. Calibrate with RO/DI water.
2. Place 1–2 drops of saltwater sample on the lens.
3. Close the lid and press the read button.
4. Get salinity in PSU, PPT, or Specific Gravity.

Salifert Calcium Test Kit

When to Use: Weekly Steps:

1. Add 2 mL water to test vial.
2. Add 8 drops of Ca-1.
3. Add 1 level scoop of Ca-2, swirl for 10 seconds.
4. Titrate with Ca-3 until the color changes to blue.
5. Use the syringe reading to determine calcium level.

  Magnesium Test(s) When to Use: 1-2 times per week  

Steps:

1. Add 2 mL water to the test vial using the syringe that it comes with

2. Add 8 drops of Ca-1 reagent and swirl it in the water for 10 seconds

3. Add 1 level scoop of Ca-2 powder and swirl gently until dissolved.

4. Fill the second syringe with 1 mL of Ca-3 reagent liquid.

5. Slowly add Ca-3 drop-by-drop while swirling it until the solution turns from a pink color to clear blue

6. Note the amount of Ca-3 used and use the chart to determine calcium concentration (ppm).

Q: Can I use these test kits on freshwater tanks? A: This bundle is designed specifically for saltwater and reef aquariums. Freshwater tanks have different chemistry and testing requirements.   Q: Do I need a dosing pump to use these? A: No. While a dosing pump helps automate some water parameters, all tests here are manual but quick. No automation required.   Q: Will this work for a nano tank? A: Yes. This bundle kit works with tanks from 10 gallons up to 300 gallons in size.   Q: How long will the reagents last? A: Depends on frequency. Each reagent pack is designed for 25 to 100 tests. For most hobbyists, you’ll get 2–6 months per pack.   Q: What if I get a weird reading? A: Always calibrate or test with RO/DI control samples. Re-check with a fresh reagent if values seem off.  

Who This Bundle Is For

• Reefers dialing in SPS systems
• Beginners overwhelmed by chemistry
• Coral keepers balancing multiple dosing elements
• Saltwater hobbyists wanting lab-grade results without lab coats

Final Thoughts – Reef Maintenance Doesn’t Have to Be Cumbersome

You didn’t set up a reef tank to play marine chemist 24/7. This Ultimate Test Kit Bundle helps you monitor what matters and skip the guesswork. Think of it like having a mini lab in your cabinet—without the lab coat or safety goggles. Plus, we bundled these at a lower price than buying each piece individually. Because reefing should be fun—and saving your corals is even better.       Need a dosing pump to provide liquid nutrients to your tank? See below.          

Stay in the loop

     

• Follow tank tips and view reefscapes on Instagram
• Join reef discussions and expert Q&A on Reef2Reef
• Aquarium how-to clips and aquatic life content on TikTok
• Catch product updates and behind-the-glass content on Facebook