Each of Tech•CB Part A and Part B is half of a ionically balanced, complete calcium and alkalinity control system for all marine aquariums. When used simultaneously in equal amounts the system will raise both the calcium and buffer level in the aquarium, and is phosphate, nitrate and gluconate free! Containing over 56,000 ppm of cationic calcium, predominately in the form of calcium carbonate, Tech•CB will produce an ionic residual with the composition of natural seawater! Each 16 oz. of Tech•CB will treat 1,900 gallons or 7,200 litres. We are finding improved results (i.e. faster growth rates) with this product, over Kalkwasser use alone, with many animals. We think that the constant addition of carbonate ions along with the calcium ions is working better than just adding buffer weekly, and dripping calcium daily.
Add 10 ml per 40 gallons aquarium capacity of part A and the same amount of part B each day, in a high flow area of the aquarium, until target calcium level and alkalinity are reached. Add in the morning to prevent overshoot of pH. (Cap on 16 oz. bottle equals 5 ml, Cap on 64 oz. and gallon equals 10 ml) Never mix part A and part B together, add to tank separately. Some cloudiness may be observed. This should go away rapidly. If calcium level is at target and alkalinity is low, then reduce the amount of part A you are adding by 50% and double the amount of part B until the values are at target. Then proceed as directed. If alkalinity is high, reduce the amount of part B etc.
Considerations for use:
A pH of 8.0 to 8.3 and an alkalinity of 2.9 to 4.0 meq/L (8 to 11 dKH) is recommended. Calcium level should be maintained between 400 and 450 ppm. Test calcium & alkalinity and adjust the recommended dose for your particular system! Do not exceed 1/2 ml per gallon per 12 hour period. If you use Kalkwasser simultaneously with this product, use half the recommended dose of Kent Tech•CB. If you have trouble maintaining calcium or buffer level, check to see that the salt mix you are using has seawater level of magnesium. To save money and increase dissolvability, some manufacturers of popular newer salts have included only half the level of magnesium necessary in their sea salt mixes, resulting in low calcium solubility and poor buffering! If magnesium is low, use Kent Tech•M Magnesium.
Part A: deionized water containing the following ions: calcium, chloride, magnesium, strontium, bromide, lithium, rubidium, nickel, chromium, zinc, copper, cesium, iron, manganese, cobalt. Part B: deionized water containing the following ions: sodium, potassium, bicarbonate, carbonate, borate, fluoride, iodide, molybdate, selenate, vanadate, and tungstate.
KEEP OUT OF REACH OF CHILDREN! If in eyes, rinse with water for 15 minutes. If in eyes, or if swallowed, call a physician. If on skin, rinse thoroughly with water.
Kent Marine Aquarium Supplies
Kent Marine was established by aquatic hobbyists who saw a need for products that aid the user in creating the most natural enclosed marine and freshwater environment possible. From vitamin and mineral supplements to nutritional products and filter media, Kent Marine set the benchmark and was one of the first in the aquatic industry to provide these unique solutions. For the past 15 years, Kent Marine has been committed to providing effective ways to keep beautiful, healthy aquariums. Through continuous research, testing and development, new products like salt mix, scrapers and reverse osmosis filtration were brought into the Kent Marine family.
Most orders under $29 ship for only $2.99 using a mix of economy shipping methods including UPS Ground, USPS First Class, and/or SurePost. Your order will be delivered in up to 7 business days after it ships out.
We ship 99% of the products we carry for free within the contiguous United States using a mix of economy methods including USPS First Class Mail, SurePost and UPS Ground. Your order will arrive in up to 7 business days. Just spend $29 or more!
Over 90% of shoppers receive their orders within 1-2 business days. Upgrade from free economy shipping to faster shipping for only $2.99—or spend $250 and we'll upgrade you automatically!
Expedited shipping services are available for most products if you are in a hurry. Get guaranteed delivery in 2 business days, 1 business day, or next day by 10:30 am. Costs vary by location.
Same-day shipping is available Monday-Friday for most products—place your order by 10:30 am PST. Pre-ordered and back-ordered items do not qualify, nor do drop-shipped, live, or frozen shipments.
We ship live plants, live foods, and frozen foods within the contiguous United States. Each of these categories is subject to its own $19.99 flat-rate shipping fee to cover the special packaging and/or expedited shipping costs required to ensure safe delivery. Orders with 12+ live plants ship free!
Learn More About Shipping
Return any new and unused item within 60 days for a full refund. Having difficulty with a product? Contact us to speak with an aquarium expert. If you need a replacement, fill out this form.
A small segment of the 180+ brands we carry require that customers contact them directly if/when problems arise. You can view the full list of those brands and get their contact info here.
We are unable to accept returns of Digital Aquatics, Neptune Systems, Vertex Aquaristik, Aqua Illumination (AI), EcoTech Marine, GHL, or Seneye products once the manufacturer's packaging seals have been broken.
Marine Depot is an authorized reseller for every product we carry. That means when you buy aquarium supplies from us, your products are not only backed by our own 60-day return policy, they also carry full factory warranties, where applicable. Some items have a 1-year warranty, others have limited lifetime warranties. Warranty coverage varies from manufacturer to manufacturer, so please read the product description of the item(s) you are considering thoroughly for details or contact us if you have warranty questions.
Learn More About Returns
Rack up reward points to earn discounts on future purchases! You can earn reward points by creating an account, writing reviews, referring friends, subscribing to our newsletter, buying products, and more!
- Earn 5 reward points for every $1 you spend to get 5% cash back
- Earn 1 reward point for every $1 you spend to get 1% cash back
Abyzz, American Marine, AquaIllumination, AutoAqua, CoralVue, Digital Aquatics, EcoTech Marine, Giesemann, GHL, Hanna Instruments, Hydor, IceCap, Innovative Marine, Iwaki, Kamoer, Kessil, Klir, Korallen-Zucht, Maxspect, Mur-lok, Nano Box, Neptune Systems, NYOS, Oceanbox Designs, Pax Bellum, Radium, Red Sea, Reef Glass, Reef Octopus, Seneye, Somatic, Tunze, Vertex Aquaristik, and Waterbox Aquariums
You can also get bonus reward points by purchasing select items during special sales and promotions.
Learn More About Rewards