Aquavitro Eight.four 350ml – Raise & Maintain Marine pH and Alkalinity
Product Overview
Aquavitro Eight.four is a high-performance buffer formulated to safely raise pH and alkalinity in marine and reef aquariums. Unlike ordinary buffers that rely solely on sodium bicarbonate, Eight.four offers a properly balanced carbonate/bicarbonate blend with an industry-leading pK of 8.6, making it easy to stabilize pH in the optimal 8.3–8.5 range.
This unique formula not only boosts alkalinity but also counters acidification more effectively, preventing pH crashes while supporting coral health and growth.
Features & Benefits
Advanced Buffering System
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Maintains a stable pH of 8.3–8.5
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Yields a pK of 8.6, superior to standard sodium bicarbonate buffers
Dual Function
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Safely raises pH and carbonate alkalinity (KH)
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Prevents ionic imbalance when used correctly
Smarter Dosing, No Waiting
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Can be dosed daily, even alongside Balance, Calcification, and Ions
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No need for multi-day intervals like with competing products
Restores Buffer Integrity
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Rebuilds disrupted carbonate/bicarbonate systems affected by organic acids or improper additives
Safe and Easy to Use
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Compatible with all reef-safe dosing schedules
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Designed for systems that require gradual, controlled pH elevation
Product Specifications
| Attribute | Details |
|---|---|
| Product Name | Aquavitro Eight.four |
| Size | 350ml |
| Function | Raises pH and carbonate alkalinity (KH) |
| pK Value | 8.6 |
| Alkalinity Boost | +0.25 meq/L (0.7 dKH) per 5 mL per 80 L dose |
| Aquarium Type | Marine and reef |
| Brand | Aquavitro (by Seachem) |
Directions for Use
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Dose 5 mL per 80 L (20 US gallons) daily until desired pH and KH are reached
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Each dose raises alkalinity by 0.25 meq/L (0.7 dKH)
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Do not exceed recommended dosage without testing
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Use Seachem MultiTest: Marine pH & Alkalinity or Reef Status: Magnesium & Carbonate/Borate Alkalinity for best accuracy
pH adjustment may take 1 day to 1 week depending on starting levels and buffer condition
When to Use Aquavitro Eight.four
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When both pH and alkalinity are low
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To stabilize buffer systems impacted by acidification or poor water chemistry
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In conjunction with other Aquavitro products like Calcification, Ions, and Balance as part of a comprehensive reef care regimen
Comparison – Balance vs. Eight.four
| Feature | Balance™ | Eight.four™ |
|---|---|---|
| Raises pH | Yes | Yes |
| Raises KH (alkalinity) | No | Yes |
| Impacts calcium/magnesium | No | May require balancing after dosing |
| Best for | pH-only correction | pH + alkalinity correction |
| Can be used daily | Yes | Yes |
