SKU: 50509404320

Aquavitro Reef Eight.Four

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Description

Aquavitro Reef Eight.FourAquavitro Eight. Four (8. 4) Aquavitro Eight. Four is used to safely raise marine pH while adjusting alkalinity in reef aquaria by providing a balanced buffer system with a pK of 8. 6. Supplies a properly balanced buffer system that yields an industry leading pK of 8. 6 which makes pH maintenance of 8. 3 8. 5 easy Will safely raise marine pH while adjusting alkalinity Many competing buffers for reef aquaria are simply sodium bicarbonate. Such buffers

Aquavitro Eight.Four (8.4)

Aquavitro Eight.Four is used to safely raise marine pH while adjusting alkalinity in reef aquaria by providing a balanced buffer system with a pK of 8.6.

  • Supplies a properly balanced buffer system that yields an industry-leading pK of 8.6 which makes pH maintenance of 8.3-8.5 easy
  • Will safely raise marine pH while adjusting alkalinity

Many competing buffers for reef aquaria are simply sodium bicarbonate. Such buffers have a pK of only 8.0 in saltwater and simply are unable to maintain a pH above 8.0. The low buffering pK is a function of the low carbonate/bicarbonate ratio.

eight.four™ supplies a properly balanced (carbonate/bicarbonate) buffer system that yields an industry leading pK of 8.6 which makes pH maintenance of 8.3-8.5 easy. A higher pK increases the buffer's ability to counteract inevitable acidic sources in the water. eight.four™ will safely raise marine pH while adjusting alkalinity. eight.four™ contains a concentrated, balanced blend of bicarbonate and carbonate salts designed to restore disrupted buffer systems and increase carbonate alkalinity.

If an alkalinity of 6 meq/L has been reached and a pH of at least 8.20 has not been attained, the system may be ionically unbalanced. Check magnesium levels. If magnesium is low, use ions™. However, if magnesium levels are within optimal range, the buffer ratio has likely been disrupted (the buffer ratio changes as a natural consequence of the buffer's ability to counteract acidifying sources such as organic acids). You can raise pH without raising alkalinity using balance™.

Unlike competing products that require multi-day interval dosing when combined with carbonate supplements, eight.four™ can be dosed daily and within minutes of our calcification™ as well as balance™ and ions™

Directions:

Dosing requirements will vary, but do not exceed the recommended dose without checking your pH and alkalinity (alkalinity should not exceed 6 meq/L). Use 5 mL for every 80 L (20 US gallons) daily until pH stabilizes to desired level.

pH stabilization may take from a day to a week, depending on original pH, alkalinity, and buffer system balance. Thereafter, use as needed to maintain pH.

Use Seachem’s MultiTest®: Marine pH & Alkalinity to check pH and total alkalinity. For a complete analysis of alkalinity, use Seachem’s Reef Status®: Magensium & Carbonate/Borate Alkalinity kit.

FAQ:

How much will one dose of eight.four™ raise my alkalinity?

A: Each 5 mL of eight.four™ added to 80 L (20 US gallons) (standard dose) will raise alkalinity by 0.25meq/L (or 0.7 dKH).

I am planning on using eight.four™ in my tank to boost my alkalinity. I see on the bottle that it says it safely raises pH to 8.4. Does this mean you cannot overdose this product?

A: While eight.four™ is certainly a very safe and effective means of adding alkalinity, overdosing is possible with any product. eight.four™ is blended in such a way that allows one to dose a significant amount more than the standard dose without overshooting pH above 8.4. However, your alkalinity can still be overshot causing issues with ionic balance. Significant overdosing of this product could potentially cause too high of a KH, thus resulting in issues with maintaining other parameters, namely calcium. It is always best to test your alkalinity before adding the product and use it as needed.

How do I know if I should use balance or eight.four to raise pH in my reef aquarium? Do they do the same thing?

A: No, these are actually two very different products. eight.four is a buffer that will raise both pH and KH (alkalinity) in your aquarium by adding a blend of buffering agents such as carbonates and bicarbonates to your system. balance specifically targets pH only by re-establishing the proper bicarbonate/carbonate ratio by using a hydroxide blend to raise pH without having an impact on KH, calcium or magnesium levels. If your calcium, magnesium and alkalinity are all in the proper levels but pH is still low, you can use balance to correct this. If calcium, magnesium and/or alkalinity is also low in addition to pH, then you may want to use eight.four in addition to other products in the aquavitro range such as calcification or ions to address any other deficiencies.

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SKU: 50509404320

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K
Kindle Customer
Battle Creek, US
★★★★★ 5
absolutely loved it!!!
Format: Kindle
This book was awesome!! I love how the female took the lead and said if you want me back you work for it!! I laughed and I cried! Thank you for sharing your characters with me and giving me a sweet place to escape to!! I definitely stayed up too late having to finish it haha!! Bouncing on my feet waiting for the next one!!!
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Reviewed in the United States on March 6, 2026
A
A D Lum
Chelsea, US
★★★★★ 3
Why call it "Grovel" when there is no actual groveling?
Format: Kindle
I'm so confused by this story. The title of the book is Grovel and yet the MMCs do not do any groveling at all. They reject her, say mean/cruel things to her and break her heart, but then do nothing to make up for it when she comes back to town. I couldn't stand Frost; the way that he treated her, and women in general, the things that he said to her just gave no reason for why he should be forgiven or be allowed back into Noelle's life. The interactions with Robin and Shepard were a little better, but nothing about this story showed me why she should forgive them and get back together with them. This was a good premise, but very poor execution of a story line. I felt bad for Noelle and what she had been through with these men, but wanted better for her and wished that she could have found a different pack that would actually treat her right and not blame her for the choices that their mother made. In the end, this book just wasn't for me. I liked the character of Nana, I even liked Noelle's parents and felt bad for what Noelle had to deal with, but I just didn't care for the supposed romance that this book was about. Maybe others will enjoy it, but I'll probably pass on any other stories from this author. I gave it 2.75 stars, but rounded up since Amazon doesn't allow partial stars.
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Reviewed in the United States on February 13, 2026
C
Carmen Alicea
Louisville, US
★★★★★ 4
The grovel wasn’t groveling.
Format: Kindle
Oh no, if you’re going to promise grovel, you better deliver. And unfortunately… this one fumbled the assignment. Three Alphas who rejected their scent match, broke her heart, and let her walk away for ten years, only to realize she was “the one suddenly”? I was ready for emotional devastation and tearful, knees-in-the-snow apologies. But here’s the problem: the grovel just didn’t hit hard enough. For a betrayal that deep, the emotional payoff felt rushed. The Alphas express regret, sure, but it never quite reaches that gut-wrenching, ache-for-it level you expect from a story built entirely on redemption. Their apologies come, but they lack the prolonged suffering, the desperate proving, the earn it or lose her forever energy that would’ve made this unforgettable. After ten years of heartbreak and abandonment, Noelle's forgiveness comes a little too easily, a little too quickly. You can feel the story nudging her toward reconciliation before the emotional scales are fully balanced. The chemistry is still there, the tension still simmers, and the small-town winter vibes are undeniably cozy, but for a book titled Grovel, the emotional reckoning needed to be deeper, messier, and far more punishing. A compelling setup with plenty of angst and longing, but if you’re here for hardcore grovel and slow-earned forgiveness, this one might leave you wanting more.
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Reviewed in the United States on March 26, 2026
R
Raielyn
Battle Creek, US
★★★★★ 5
Christmas fluff
Format: Kindle
This is a super cute sweet and fluffy sort of story, no OTW no angst a little bit of sadness some reject but you know in the end they come back together as a better stronger pack.
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Reviewed in the United States on March 13, 2026
A
Verified Purchase
Amanda
Los Angeles, US
★★★★★ 5
Great read
Format: Kindle
Hahahha omg I love Laurie. Momma don't care if you're an Uber alpha, she'll still middle name you & give you a dressing down hahaha. But really, this was a great read, great pacing for a fast paced book (timeline-wise) & great characters that actually felt individual. Plus I always love psycho puppy alphas haha.
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Reviewed in the United States on July 29, 2025

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