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Brightwell Aquatics Kalk+2 - Advanced Kalkwasser Supplement 450g / 15.9oz

Visit the Brightwell Aquatics Store

4.5 84 ratings

$26.49

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Purchase options and add-ons

Brand	Brightwell Aquatics
Item Weight	1.2 Pounds
Item Form	Powder
Target Species	Fish

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Powder

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Brightwell Aquatics Kalk+2 - Advanced Kalkwasser Supplement 450g / 15.9oz

$24.99

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Only 20 left in stock - order soon.

Ships from and sold by Premium Aquatics Inc.

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Product Description

Contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness of KALK+2 to reef-building invertebrates such as corals, clams, calcareo Provides temporary alkalinity and helps maintain pH within the desired range when used as directed. Adds no conservative elements, such as chloride, to the aquarium. Improves upon the industry-standard powdered calcium supplement over the past three decades. Formulated by a marine scientist.Powder450-g

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Product information

Product Dimensions

6.5 x 3.7 x 3.7 inches

Item Weight

1.15 pounds

Manufacturer

Brightwell Aquatics

ASIN

B001DIIVU4

Item model number

ABAKALK450-15_7400

Customer Reviews

4.5 84 ratings

4.5 out of 5 stars

Best Sellers Rank

#141,365 in Pet Supplies (See Top 100 in Pet Supplies)
#1,317 in Aquarium Water Treatments

Is Discontinued By Manufacturer

Date First Available

June 24, 2004

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Product Warranty: For warranty information about this product, please click here

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	This Item Brightwell Aquatics Kalk+2 - Advanced Kalkwasser Supplement 450g / 15.9oz	Recommendations Tropic Marin All for Reef Powder 800g	dummy Seachem Reef Kalkwasser 500gram	dummy Seachem Reef Kalkwasser 1 Kilo	dummy Brightwell Aquatics Kalk+2 - Advanced Calcium, Magnesium & Strontium Powdered Kalkwasser Supplement for Marine Fish and Aquariums	dummy Seachem Reef Kalkwasser 250gram
	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart
Price	-5% $24.99 Typical: $26.44	$49.70	-9% $20.55 List: $22.48	$34.90	$28.10	$17.08
Delivery	Get it May 10 - 16	Get it as soon as Thursday, May 9	Get it as soon as Thursday, May 9	Get it as soon as Thursday, May 9	Get it as soon as Thursday, May 9	Get it as soon as Thursday, May 9
Customer Ratings	4.584	4.856	4.7389	4.469	4.6216	4.7389
Sold By	Premium Aquatics Inc	E.A. Prime Distribution CTR CPT	Amazon.com	Amazon.com	Amazon.com	Amazon.com
target species	Fish	Coral	—	—	Fish	—
liquid volume	—	5 liters	500 milliliters	4 liters	—	4 liters
form	Powder	Powder	Liquid	Granules	Powder	Granules
weight	1.15 pounds	0.98 kilograms	0.43 kilograms	1.1 kilograms	1 pounds	0.29 kilograms

Customer reviews

4.5 out of 5

84 global ratings

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Ribbs

Good stuff!

Reviewed in the United States on November 15, 2013

Verified Purchase

I swear by this stuff. You could probably just use regular Kalk, but I like the fact that other elements are contained in this powder. I have never used anything else though, so I have nothing to compare it to. I just know that there is plenty of calcium and iodine in my water. Calcium because all of my hard corals are growing skeletal mass, iodine because my sally light foot crab keeps molting, and molting, and molting. My wife says he's going to grow big enough to eat our kids!

4 people found this helpful

Helpful

Amazon Customer

works good

Reviewed in the United States on April 25, 2023

works good

Reviewed in the United States on August 4, 2022

Verified Purchase

Used it for a month or 2 now switched from brs seems to keep my magnesium from dropping over the weeks before I would have to dose it separately

Helpful

C. D. Goodman

Best Kalk i have found.

Reviewed in the United States on November 18, 2014

Verified Purchase

This is the best Kalk i have found. I have been adding Kalk for years. This one helps keep up Strontium levels and Magnesium as well.
It costs a bit more, but it is worth it. I use it on my 180 gallon reef tank.
I admit, sometimes, I mix it with some less expensive but very pure Kalk. This way I get some of the benefits of the add minerals, at a slightly better value.

2 people found this helpful

Helpful

Moe

It works but there are better options

Reviewed in the United States on September 20, 2021

Verified Purchase

I have this in a kalk stirrer set on a dosing pump to get consistent dosing for stable parameters. It works to a point and magnesium seemed to be dosed but still needed supplementation. As consumption grew in my tank I had to supplement with 2 part dosing. A friend recommended I try BRS pharma kalk and sure enough the potency was much higher with BRS kalk to where I am now dialing down my 2 part and may be not needing 2 part dosing at all. Sorry brightwell but there are better options and from icp testing at BRS there are cleaner options too.

One person found this helpful

Helpful

Dustin

Miracle Powder!

Reviewed in the United States on March 2, 2018

Verified Purchase

This product is amazing. I had so many problems with my tank and between dosing x y and z, water changes, everything just looked horrible. I use this product just strictly in my RODI ATO reservoir tank which puts perfect amount into system. My system is beautiful now!!

4 people found this helpful

Helpful

H. Fernandez

corrals happy, shrimp and otherd molting and getting bigger

Reviewed in the United States on March 21, 2016

Verified Purchase

This is the first Kalk ive tried, why try something else if all level are keeping high in my tank, corrals happy,shrimp and otherd molting and getting bigger,zoas and candys growing more heads new polips.... will keep mixing and driping in slow as i have been for months now

Helpful

Edward V. Yezekian

false advertising for magnesium

Reviewed in the United States on April 16, 2018

Verified Purchase

I have a problem with the Kalk+2 product. I had doubts that this product could work as advertised because magnesium precipitates in high PH, and since a saturated kalk solution is a very high PH environment, logic dictates that the magnesium would just fall out of solution and rest on the bottom of the container... well, most kalk solutions have some sediment after it becomes fully saturated, so i originally thought that's what it was. However at such a high cost, i did further testing, and even at a 50% saturation there is quite a bit of precipitant on the bottom, which leads me to believe it is the magnesium. Which also tells me that when i dump out the slurry at the bottom its all magnesium, and my drip is only providing pure lime water, which i can buy at a fraction of the cost. Further evidence indicates that there is no significant increase in magnesium in my tank, in fact, i still see the typical consumption rate. Perhaps this product is more useful in a kalk stirrer which will release the slurry into the water column where the crystallized magnesium would dissolve into solution once in a more sea-like PH environment.

I suggest a recommended use within a kalk stirrer be advertised and a notice that magnesium will fall to the bottom unless kept in suspension in a stirrer.

Calcium and Alkalinity is increased as advertised, but no better than a product at half the cost.

5 people found this helpful

Helpful

Top reviews from other countries

Steve Harding

Five Stars

Reviewed in the United Kingdom on February 2, 2018

Verified Purchase

great stuff.

Amazon Customer

Five Stars

Reviewed in Canada on January 6, 2017

Verified Purchase

Good price and great product

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