




🌟 Elevate your reef’s vitality with science-backed alkalinity mastery!
Seachem Reef Carbonate 500ml is a highly concentrated liquid supplement (4,000 meq/L) combining carbonate and bicarbonate salts to restore and maintain optimal alkalinity in reef aquariums. Its advanced formula stabilizes pH around 8.3-8.4, promoting healthy coral growth without depleting essential minerals like calcium, magnesium, or strontium. Trusted by reef enthusiasts, it ensures your aquatic ecosystem thrives with balanced chemistry.

| Brand | Seachem |
| Customer Reviews | 4.7 out of 5 stars 411 Reviews |
| Item Form | Liquid |
| Item Weight | 1.35 Pounds |
| Liquid Volume | 500 Milliliters |
| Manufacturer | Seachem Laboratories, Inc. |
| UPC | 000116066303 |
J**O
Would recommend
Works perfect. Directions are easy and it didn’t mess with any of my other elements
C**S
It is really good I will be getting more
This is all I use now it works perfect never had any trouble with any product from these guys I would highly recommend if your receiver
D**E
As described
Best alk supplement for the price. I have used it in my reef tank and it was great. Fish are okay. PH level depends on dosing amount. Product does not leak and is safe use. Functions good.
S**I
Good product
Does what it is supposed to do. I have found when calcium is high, alkalinity is low and when alkalinity is high, calcium is low; so maybe keep that in mind. Other than that I ve been using Seachem products since I started in this hobby and so far have no regrets. Amazon has the most realisting prices especially with prime shipping. LFS's want WAY too much $.
P**N
Trusted brand, good price
Good price for reef tank minerals.
D**H
Seachem
Love seachem products
A**R
Good
As described good price for quantity
E**S
As described
As described
Trustpilot
2 weeks ago
3 weeks ago