Marine Depot now offers FREE economy shipping with no minimum purchase for 99% of the products we carry! Orders under $299 are shipped FREE using a mix of economy shipping methods including USPS First Class Mail, SurePost and UPS Ground. These shipments are typically delivered in 5-7 business days. Orders placed Monday-Friday before 10:30 am PST are shipped the same day. This offer is valid for orders shipped within the contiguous U.S. only. Frozen foods, live foods, and items shipped directly from the manufacturer do not qualify for this special offer.
$4.99 Upgraded 1-5 Day Shipping (FREE for orders $299+)
This is the shipping method most Marine Depot customers are accustomed to and is really the sweet spot for service and value. Thanks to our two strategically placed warehouse locations, over 90% of Marine Depot shoppers receive their orders within 2 business using this level of service (UPS Ground).
UPS Ground shipping is available for only $4.99 but is FREE with orders over $299. This shipping upgrade speeds delivery time to 1-5 business days. This offer is valid for orders shipped within the contiguous U.S. only. Frozen foods, live foods, and items shipped directly from the manufacturer do not qualify for this special offer.
Frozen foods are delivered 1-3 business days from the day your order ships. Frozen foods are shipped every Monday and Tuesday. Shipping cut-off is Tuesday at 10 am PST (1 pm EST). Orders received after 10 am PST on Tuesday will be shipped the following week. Shipping and handling is a $19.99 flat-rate charge so you can order as much or as little as you like.
Orders not shipped within the contiguous United States—the 48 U.S. states on the North American continent south of Canada plus the District of Columbia—are considered international orders. International orders are not eligible for Marine Depot’s free shipping promotions and additional surcharges may apply. It is important to note that not all products we carry can be shipped internationally. Any brokerage fees, tariffs and/or taxes will be billed to you directly by the shipping courier. International customers must use the same billing and shipping address.
INTRODUCING THE AQUAMAXX CALCIUM REACTOR AquaMaxx Calcium Reactors use an upflow design to mix saltwater, calcium carbonate and CO2 inside a reaction chamber to eliminate the need for daily two-part dosing. Not only will the AquaMaxx Calcium Reactor keep your levels balanced, you will no longer have to calculate daily dosages for your tank.
AquaMaxx Calcium Reactors are computer-precision engineered and utilize the latest aquarium technology to deliver unparalleled performance and value. The CR-1 is rated for aquariums up to 350 gallons yet is thin enough to be concealed underneath your aquarium or inside the sump.
SUPERIOR DESIGN WITH EASY ACCESS FOR MAINTENANCE AquaMaxx Calcium Reactors were designed from the ground up with the aquarium hobbyist in mind.
The computer precision-cut enclosure makes the reactor look and feel seamless. There is only one cord on the reactor: the power cord. With the fittings and pump on the same side, everything stays neatly organized.
Cleaning and maintenance is simple. For quick access to the included Sicce pump, simply unscrew the union. You do not need to replace media too often with a reaction chamber this size but, when you do, it could not be easier. Just turn the thumbscrews counterclockwise, remove and replace the sponges and replenish the reactor with quality calcium carbonate media.
ADVANCED FEATURES AND PERFORMANCE Monitor your AquaMaxx Calcium Reactor’s pH by placing a probe into the built-in probe port. A bubble counter is also included so you can monitor the amount of CO2 gas inside the reactor.
The workhorse powering the AquaMaxx Calcium Reactor is the pump. Each reactor is equipped with an Italian-imported Sicce Syncra CR-1 Silent 1.5 pump. These pumps were specially chosen for their small footprint, energy-efficient design (a mere 23 watts) and whisper-quiet operation.
AquaMaxx Calcium Reactors are shipped with detailed instructions and diagrams to help you get up and running quickly. All AquaMaxx products are backed by a 90-day manufacturer warranty.
High quality acrylic construction ‚ High quality SCH80 fitting
Highly Efficient, Durable, Reliable
Simple to Set Up and Operate
Up flow design
Clear cast acrylic accurate CO2 bubble counter
Thumbscrews for easy removal of lid ‚ Easy to clean!
Includes PH probe holder for PH monitor
Easy removal of pump with union coupling for maintenance
AquaMaxx AquaMaxx is a Southern California-based aquarium supply company that entered the market in mid-2008 with a line of affordable metal halide bulbs. The brand quickly gained recognition as word spread about the high quality and low cost of their lamps. In 2009, AquaMaxx released a line of aquarium filter socks and, in early 2010, unveiled an assortment of high-performance protein skimmer accessories and upgrades.
AquaMaxx Limited Manufacturer Warranty AquaMaxx will warrant all AquaMaxx products to be free from manufacturing defects for one year from the original purchase date when purchased through an authorized AquaMaxx retailer. This warranty does not cover any damages caused by misuse, neglect, alterations or improper handling/transport/maintenance/installation. AquaMaxx does not cover personal injury, personal loss, or other damages associated with the use of these products.
Great Calcium Reactor for the price. Easy setup. Biggest complaint is that the pump and plumbing connected to the pump input and output LEAK. After a couple months of having this running, this is leaking so bad that I am going to have to empty it and see if I can epoxy the pump to prevent further le...Read More
Great Calcium Reactor for the price. Easy setup. Biggest complaint is that the pump and plumbing connected to the pump input and output LEAK. After a couple months of having this running, this is leaking so bad that I am going to have to empty it and see if I can epoxy the pump to prevent further leakage. Not Ideal if you are running this externally. I would only recommend this if you know going into the purchase that you will have to epoxy the pump and plumbing before you can use it.Hide
I bought this reactor to replace an old one. It was easy to set up and so far I am extremly happy with it. The only problem I had was a small leak where the union was glued to the pump inlet. A small dab of epoxy and the reactor is working great! Other reactors say 6" wide by ...Read More
I bought this reactor to replace an old one. It was easy to set up and so far I am extremly happy with it. The only problem I had was a small leak where the union was glued to the pump inlet. A small dab of epoxy and the reactor is working great! Other reactors say 6" wide by 24" tall And those are outside measurement. This on was alot larger than I expected. Anyone looking to upgrade or buying for the first time this is an awesome reactor at half the price of others.Hide
Most products ship free—no minimum purchase required
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 5-7 business days.
upgrade your shipping for only $4.99—free upgrade for orders $299+
Over 90% of our members receive their orders within 2 business using UPS Ground. Upgrade from free economy shipping to UPS Ground for only $4.99—or spend $299 and we’ll upgrade you automatically!
need your order even faster? no problem!
Expediated 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.
buy it today and we'll ship it today
Same-day shipping is available Monday-Friday for most products—place your order by 10 am PST. Pre-ordered and back-ordered items do not qualify, nor do drop-shipped, live, or frozen shipments.
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.
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.
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!
Most Products Earn 5 reward points for every $1 you spend to get 5% cash back
Marine Depot, AquaMaxx, Accel Aquatics, and Korallin Earn 6 reward points for every $1 you spend to get 6% cash back
Aqua Illumination, EcoTech Marine, Nano Box, Neptune Systems, NYOS, Oceanbox Designs, Pax Bellum, and Reef Glass Earn 1 reward point for every $1 you spend to get 1% cash back
You can also get bonus reward points by purchasing select items during special sales and promotions.
If you find a product we sell for a lower price at another online store, we will match their price to ensure you always pay the lowest amount when you shop with us.
Enter the price, shipping cost and website address where you found the lower price. Then click the "Add to Cart" button. We will review the lower price while processing your order and make any necessary reductions before your order ships. Some restrictions apply. See Terms & Conditions