- Pharma Kalkwasser Starter Package - Bulk Reef Supply
Everything you need to maintain calcium & alkalinity in your reef tank!
BRS Kalkwasser is not your typical calcium hydroxide. It is made from an ultra-pure source that contains extremely low amounts of aluminum and compared to traditional kalkwasser you can actually see the difference. If you are adding Kalk to your ATO reservoir or a reactor, you will find that BRS Kalkwasser mixes faster with fewer impurities, and is more even potent than the others meaning you will not have to use as much, saving money in the long run.
2-Pound Kalkwasser Starter Package Includes
- 2-Pounds Pharma Kalkwasser
- 1-Gallon Mix Pharma Sodium Bicarbonate
- 1-Gallon Mix Pharma Calcium Chloride
- 1-Gallon Mix Pharma Magnesium Mix for General Adjustments
- 3 Mixing Jugs - Jug color may vary between translucent and opaque white
- 100mL Measuring Cup
- 100mm Funnel
- 2 Dispensing Pumps
The two-pound kits come with everything you will need to get started. The kits include calcium chloride, and sodium bicarbonate (alkalinity), and magnesium to get your reef balanced before using kalkwasser. All you will need to provide are the test kits, mixing jugs, and water. The 2-pound kit is great for reefers just getting started with calcium and alkalinity maintenance. If you have a nano-sized tank or even a larger aquarium with minimal corals, the pre-measured pouches are super easy to mix, requiring no measuring before mixing.
Using Kalkwasser (Calcium Hydroxide)
Kalkwasser is the easiest method to maintain calcium and alkalinity levels in a reef aquarium not to mention low cost. With a few different methods to implement it, if your corals are growing and you need to add calcium and alkalinity, you will more than likely find multiple benefits from using kalkwasser. Being the only way to add calcium and alkalinity from a single solution along with helping elevate the pH of your aquarium to helping purify your ATO water even further, there are plenty of reasons to add kalkwasser to your ATO reservoir or set up a Kalk reactor or drip system. By far the most common application for kalkwasser is by adding it to your tanks top off reservoir and then relying on the auto top off system to deliver small amounts of saturated kalkwasser solution throughout the day.
How to Use Kalkwasser with an ATO System
Step 1. Test and adjust your aquariums calcium, alkalinity, and magnesium levels using the included BRS Pharma Calcium Chloride, BRS Pharma Sodium Bicarbonate, and BRS Pharma Magnesium.
Step 2. Start by establishing the proper amount of kalkwasser to mix into your aquariums top off water reservoir.
- Low Demand - 1/2 teaspoon per gallon of top off water
- Medium Demand - 1 teaspoon per gallon of top off water
- High Demand - up to 1 1/2 teaspoons per gallon of top off water
Step 3. With RODI water fill your top off reservoir & mix in the proper amount of kalkwasser then allow the solution to settle for 30 minutes before using.
DO NOT OVERMIX: Excess mixing and air contact will decrease the potency of kalkwasser.
Step 4. Place your ATO systems pump or intake line is place 1/2" to 1" above the base of your reservoir, ensuring only the clear slurry is being dosed.
Step 5. Activate your ATO and monitor the pH of your aquarium as the kalkwasser solution is being dosed, not exceeding increases of 0.20 pH. Your ATO should be pumping water into a high flow area of your sump or display tank to help prevent precipitation. Adding kalkwasser too fast may result in precipitation rendering it ineffective.
Step 6. Monitor your aquariums calcium and alkalinity daily, adjusting the strength of the kalkwasser solution in your top off reservoir as necessary.
Refilling The Reservoir
Simply refill your container with fresh RODI water and add the proper amount of kalkwasser per gallon of new RODI water and mix. It is recommended to clean your ATO reservoir regularly, though you do not have to every time you replenish your ATO container.
Note: We highly suggest using a pH controller to prevent against pH spikes and overdosing.
Maximum Dosage - 1 1/2 teaspoons per gallon of top off water
One of the limitations of kalkwasser is its 1 1/2 tsp. per gallon saturation point. Anything more than that will simply fall to the bottom of your reservoir and become essentially useless. If your aquarium is requiring more calcium and alkalinity than what kalkwasser can keep up with there are a few solutions;
- Start 2-part dosing
- Increase your aquariums evaporation rate with fans
- Vinegar method (experts only)
How Does Kalkwasser Work?
Kalkwasser or Calcium Hydroxide Ca(OH)2 when mixed with fresh RODI water contains a perfect balance of alkalinity and calcium ions that can be added to your aquarium to help supplement what your corals consume when they grow. It is pretty easy to see where the calcium is derived from but the alkalinity can be a little more difficult to see, and when Kalkwasser is added to your saltwater tank a simple reaction takes place converting the hydroxide into available bicarbonate ions. Essentially the CO2 in your water and atmosphere will react with the hydroxide ions creating bicarbonate ions and increasing your tank's pH, due to less available carbon dioxide.
Ca(OH)2 = Kalkwasser
OH- + CO2 = HCO3 = Bicarbonate
OH- + HCO3 = CO3-- + H20 = Carbonate + Pure Water
Awesome package By John on 7/18/2018John would recommend this product to a friendJust ordered this product for my new reef tank. Really impressed with everything you get. I loved the fact that the include full 1 gallon packs of the alk,mag, and calcium. It was really easy to follow the instructions and use the calculator to figure out exactly what I needed to adjust my parameters before I used the kalkwasser. Thanks for a great package for a great price. The funel is awesome to have with this package
Nice upgrade By LandLockedReefer on 4/30/2018LandLockedReefer would recommend this product to a friendThis is the perfect package. These mixed up very well and brought my Alk, Cal and Mag levels up to where they need to be. The calculators on BRS worked perfectly for the new pharma grade pouches as well. The mixing jugs were nice also and made everything a breeze to set up. Be careful when pumping the jugs at first, it takes a little force to push down and the liquid can come shooting out. I think its just because they are brand new pumps and has already become easier to control when filling the measuring cup. Thanks BRS!
Awesome Product By Will on 4/30/2017Will would recommend this product to a friendLove how easy it makes the process of keeping calcium leveled out and also the benefits of raising Ph. I got the starter pack which made it easy to adjust the base levels of alkalinity, calcium and magnesium and all I do is add the kalk to the ATO and it takes care of the rest I just have to test magnesium and make adjustments very seldom
Nano size should be available- Good product By gunchy on 4/18/2017gunchy would recommend this product to a friendI liked the product and the directions were clear. I am using the kalkwasser for two weeks now and my calcium and alkalinity level are where they should be. However, BRS should have a nano version since many people will not use all of the product.
Kalkwasser is awesome By Scott on 1/29/2016Scott would recommend this product to a friendRecently order this starter kit as it is my first time dosing Kalk. Everything I needed was included and it makes it so easy. Well done.
Great product, could do better with instructions. By David on 11/21/2015David would recommend this product to a friendEverything is high quality and wonderful. The instructions are generally clear, but require that you read them a few times. Just double check yourself, i almost read them wrong the first time.
Did the trick, but it's far more than I needed By BBGoby on 3/9/2015BBGoby would recommend this product to a friendI got everything up to where it needs to be this weekend, particularly the ALK, from about 4-9 over about an eight hour period, and Mg from 1200-1350. Calcium was OK. Having done this, I can now I can add Kalkwasser in my ATO in an attempt to keep ALK in range. So all good, but for my 32G it's far more than I need so I've got a lot of Starter package left over. Too bad they don't have a nano version, or the like.
Great Starter Kit--improved with a Total Package Option By Stephen on 3/22/2014Stephen would recommend this product to a friendAnother hit from BRS! This package, coupled with the videos and other instructions, is a terriffic way into the world of Kalkwasser.
One recommendation would be to offer a "total" package that includes the gallon jugs, the 1oz. dispensing pumps, and perhpas a 1 gallon mixing container. Secondly consider, placing the "You Will Also Need" segment from the printed instruction sheet under "Full Details."
Great product By Jaime on 3/5/2014Jaime would recommend this product to a friendI'm new to reefing. Bought this product based on the YouTube videos. After 3 weeks my tank looks much better. I currently have 1 frag of zoanthids and since I started dosing they look much healthier and have started to multiply.
great kit By Jason on 9/1/2013Jason would recommend this product to a friendthis is a great kit and has everything to get your numbers up and keep them up. seems very pure and performs just as expected.
Volume of Value By Jonathan on 2/20/2013Jonathan would recommend this product to a friendHoly powder Batman!! Ton of Volume!!! Perfect Kit to get things going in the right direction. Follow instructions+ watch videos+ use calculator=perfection every time!
Great value By Samuel on 1/3/2013Samuel would recommend this product to a friendYou really do get alot for what you pay for maybe to much(not a bad thing). The videos helped me out alot as I was new to dosing. Mixing each element was not as hard as I thought it would be either. This is an all around awesome package.
After I got all my parameters where I wanted them I didn't think I would need the alk or cal solution but after a few water changes I noticed my cal jumped up but my alk didn't. I had to stop using kalk for a little bit til my cal went back down and dosed only the alk solution to keep it stable.
This is an all around awesome package.