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E.S.V. Calcium Hydroxide 14 Oz.

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E.S.V.

Calcium Hydroxide is the proven standard for maintaining calcium concentration and alkalinity in closed marine aquaria. The calcium provided is directly used by calcifying organisms, and the hydroxide ions provided readily convert dissolved CO2 into bicarbonate and carbonate ions, which are also directly used by calcifying organisms. The net result is no ionic imbalances in the aquarium water, which can occur through the prolonged use of other calcium supplements, such as calcium chloride. This product is extremely pure and meets American Water Works and Water Chemicals Codex Specifications. This means it`s pure enough to be used in low-levels as potable water additive by water municipalities. Due to the high pH of Calcium Hydroxide solutions, it`s important to add slowly ("dripping" is best) to your system so as to prevent localized precipitation and the resultant loss of alkalinity. Use two teaspoons of Calcium Hydroxide Powder per gallon of top-off fresh water.




Manufacturer Info

E.S.V. Aquarium Supplies
E.S.V. Aquarium Products is a Hicksville, New York based aquarium supply company that specializes in the production of aquarium additives and supplements. Their 2-part B-Ionic Calcium Buffer System is a staple in the marine aquarium hobby and is the company`s flagship product, earning favorable reviews and rankings from hobbyists of all levels of experience. Their additives are known for being affordable, easy to administer and chemically sound. E.S.V. recently released a spray dried phytoplankton that eliminates the need to culture live phytoplankton. Granular activated carbon, coral glue, salt mix and various other supplements round out their product offerings.

15 Reviews

JOHN MOFFETT from YUMA, AZ UNITED STATES

03/10/2016

Experience Level: Expert

E.S.V. Calcium Hydroxide

Excellent product. I use it in a Kalk stirrer which is fed by an ATO. It helps keep crystal water clarity, enhances Calcium and dKH, lowers Phosphate, and stabilizes pH.

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John DiPaulo from Rochester, NY UNITED STATES

01/18/2014

Experience Level: Intermediate

great value

This a great company they are the same people that make b-ionic they know what they're doing excellent quality

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JOSE M SANTIAGO from BROKEN ARROW, OK UNITED STATES

03/08/2013

Experience Level: Expert

Electonic Eng

The calcium and alkalinity is perfes and the PH is 8.31.

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RYAN GILTNER from CLINTON, OH UNITED STATES

09/16/2012

Experience Level: Intermediate

esv calcium hydroxide

This is a great product it keeps my calcium where it needs to be with the correct dose this is some powerful stuff so read carefully!!! And it also helps with my ph I had trouble with keeping my ph above 8.0 and now its steady at 8.25 can't complain!!

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WAI from SANTA ROSA, CA UNITED STATES

10/14/2011

Experience Level: Expert

good product

better than most brands i've tried in the past. disolves well with minimal residual. highly recommend it

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JOHN HORNE from OCALA, FL UNITED STATES

10/09/2011

Experience Level: Expert

E.S.V. Calcium Hydroxide

great stuff i have 200 gl.reef tank it last about 6 mounts

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MANUEL GUZMAN from PEMBROKE PINES, FL UNITED STAT

08/17/2011

Experience Level: Intermediate

ESV Kalk

Good stuff!

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MARK B. from PARAMOUNT, CA UNITED STATES

08/01/2009

Experience Level: Expert

Great with B-Ionic 2Pt.

I have a 180 gallon Reef tank and this product really works great with the B-Ionic 2-Part Calcium Buffer. The Calcium Hydroxide is a perfect match for the 2-Part. I have never had my corals look so good. Please note that a review stated that the ESV Calcium Hydroxide is not the correct product. It is the real deal because Calcium Hydroxide is Ca(OH)2. Ca(OH) does not exist as a solid. One calcium ion (Ca++) has a double positive charge while a hydroxide ion ([OH]-) contains one negative charge. This means 2 hydroxide ions must be coupled with the one calcium ion to balance the charge.

2 out of 3 found this review helpful

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OLGA BARTNICKI from PENDLETON, OR UNITED STATES

02/26/2009

Experience Level: Expert

wrong

product its actually calcium dihrydroxide there is a difference. Ca(OH) is calcium hydroxide this is Ca(OH)2 itll cost me as much as the thing cost to return it.

2 out of 3 found this review helpful

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STEVEN MARANDOLA from WEST WARWICK, RI UNITED STATES

10/31/2008

Experience Level: Expert

good stuff

esv is great. I always buy their products.

0 out of 3 found this review helpful

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