Can this be used in a fresh water aquarium for raising KH? Thanks

I would not use this in a freshwater tank. If you are worried about hard/soft water or you want a ph change for a special plant. I suggest you put a baggy of crushed coral in your filter and let that dissolve over time and repeat every few months. However having both a large reef aquarium as well as a smaller freshwater aquarium I have never really had to worry about my KH in my freshwater. In fact I use no chemicals in my freshwater tank as it's so easily self sustaining. Also not trying to sound like a jerk here but it's gonna come out that way I am sure, but if something says REEF or SALTWATER don't put it in freshwater. There are only a few things that can be used in both and this isn't one of them. Ben

Will I still need to add a pH buffer to supplement this product?

NO---This product will maintain the necessary alkalinity and ph

My small bio cube has a kh of 7.3 and calcium at 390 i own a bottle of reef carbonate is there something else i should also buy to get this in check?

I use the reef carbonate to increase my KH.. I keep my KH around 10 in my 93 gal mixed reef. You should try to keep kh above 8 if you have hard corals imo. Reef carbonate does not contain any calcium so you need another source. I use ESV b-ionic calcium to maintain my ca level at 450 or higher. Hope this helps

What's the difference between this and Seachem Liquid Marine Buffer?

The liquid marine buffer is to keep your ph stable. Weather ho or low. The carbonate is for the coral growth and health. Your ph levels are very important to your corals growth and health as well. Through my experience use both as needed

Seachem Reef Carbonate 500 Ml | Desertcart Malaysia

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

RM224

Duties & taxes included

In stock

Sold byAmazon MalaysiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Malaysia.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

🌊 Elevate your reef’s vitality with precision carbonate power!

TRUSTED REEF CARE - Seachem quality with 4.7-star rating from 496 reef enthusiasts
BALANCED MINERAL BLEND - Optimized mix of carbonate and bicarbonate salts for stable water chemistry
SIMPLE MEASURABLE DOSING - Clear instructions ensure perfect dosing every time
PRECISION ALKALINITY BOOST - Easily raise KH levels for a thriving reef environment
ULTRA CONCENTRATED FORMULA - High potency at 4,000 meq/L means less product, more impact

Seachem Reef Carbonate is a 500 ml liquid aquarium conditioner designed to raise carbonate alkalinity (KH) in reef tanks. Its ultra-concentrated formula (4,000 meq/L) combines carbonate and bicarbonate salts to stabilize water chemistry, promoting healthy coral growth. Trusted by hobbyists with a 4.7-star rating, it offers precise dosing instructions for optimal reef care.

Specifications

ASIN	B0002DGM5C
Allergen Information	Abalone Free
Best Sellers Rank	49,704 in Pet Supplies ( See Top 100 in Pet Supplies ) 512 in Aquarium Water Treatments
Brand	Seachem
Brand Name	Seachem
Country Of Origin	USA
Customer Reviews	4.7 out of 5 stars 520 Reviews
Global Trade Identification Number	00000116066303
Included Components	Seachem Reef Carbonate 500ml
Item Form	Liquid
Item Type Name	Aquarium Conditioner
Item Weight	612 g
Item form	Liquid
Item weight	612 g
Liquid Volume	500 Millilitres
Liquid volume	500 Millilitres
Manufacturer	Seachem
Manufacturer Part Number	663
Model Number	663
Number of Items	1
Pet Type	Fish
Target Species	reef aquarium
UPC	000116066303
Unit Count	1 count
Unit count	1 count

Reviews

A**R

Lid was loose

Lid was loose, and white powdery crust was all over the bottle.

15.03.2021

Z**E

It works.

It works as advertised.

22.06.2016

S**Y

Good product does what it should do

Product does what it needed to do to bring my water to the right levels

18.09.2026

A**R

Works as expected.

Works great for bumping up my alkalinity. I just recommend starting with very small doses and increasing them slowly

30.07.2025

D**V

his is a Great item and it Works Perfect

this is a Great item and it Works Perfect. i Will Buy this product again the shipping was fast. the most important thing to me is that this product work and i don't have any thing bad to say about it.

8.11.2013

R**R

Great for reef tank

12.07.2026

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

RM224

Duties & taxes included

In stock

Sold byAmazon MalaysiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Malaysia.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago