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Free Upgraded Shipping For Orders $250+
Most orders over $250 qualify for FREE upgraded shipping! Your order will be delivered 1-5 days after it ships out. Thanks to Marine Depot's two strategically located warehouses in Nevada and Georgia, over 90% of shoppers receive their orders within 1-2 business using this level of service. Orders placed before 10:30 am PST Monday-Friday are shipped the same day. Free shipping is only available within the contiguous United States. Frozen foods, live foods, oversize/overweight and items shipped directly from the manufacturer do not qualify for this special offer.
$5.99 Flat Rate Shipping For Orders Under $39
Most orders under $39 ship for only $5.99 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. Orders placed before 10:30 am PST Monday-Friday are shipped the same day. Our $5.99 flat rate shipping is only available within the contiguous United States. Frozen foods, live foods, and items shipped directly from the manufacturer do not qualify for $5.99 flat rate shipping.
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.
Maxspect’s Nano-Tech Bio-Blocks are a durable dense arrangement of small spheres creating an ultra-high surface area media which reduces the volume of bio-media actually required for efficient nutrient cycling in both fresh and saltwater aquariums and ponds.
This unique ceramic media has a cross-cutting surface area that creates an ideal surface for a dense populations of beneficial bacteria that remove ammonia and nitrites from aquariums water. Some systems may also notice a decrease in nitrates with prolong use.
Suitable for sumps, reactors trickle filters, wet/dry filters, hang on the back filters or directly in the tank.
The Maxspect Nano-Tech Bio-Media is developed using established technology borrowed from the sewage treatment industry with a proven record of nutrient removal of waste water. Instead of using mounds of costly live rock within the aquarium for biological surface we now have the option to regain more space and less weight in our aquariums and sumps.
Nano-Tech Bio-Block offers up to 300% the efficiency in treating water over other bio-medias twice its size.
One box of Maxspect Bio-Blocks contains two separate blocks measuring 4 x 4 x 1 inch.
One box with two Bio-Blocks has a total surface area of over 23000 square feet. That is almost half a football field!!!
Features:
One Bio-Block is made up of around 3.5 million beads with a total surface area of just over 11000 square feet
Cross-cut surface ideal for beneficial bacteria to colonize
Fits into many different filter types
Specifications:
For Fresh or Saltwater aquariums and ponds
Ceramic based block composed of nano-beads
Block Dimensions: 4" x 4" x 1"
Blocks Per Box: 2
Total Surface Area Per Box: 23,270 ft2
Treats: 750 gal
Ask a Question Earn 15 Points when you answer a question
These are very small in size and absorb an incredible amount of water. I started using Marinepure Cermedia blocks before they were even accepted into the hobby 10 years ago. While great Cermedia crumbles after time. This media is solid and seems that it will stay together for some time.
PROS
Helps maintain and habor a healthy bacterial population to ensure stable nitrogenous waste levels.
CONS
Can't fit more in the filtration chamber in my IM Nuvo Fusion 10
REVIEW
Back in September I upgraded from the IM Nuvo Nano 8 to the IM Nuvo Fusion 10 mainly because it was get a bit crowded and minor scratches to side panel.Rather risking a catastrophic mini cycle I ditched the sand and implemented the barebottom method.Taking this approach isn't without its disadvantag...Read More
Back in September I upgraded from the IM Nuvo Nano 8 to the IM Nuvo Fusion 10 mainly because it was get a bit crowded and minor scratches to side panel.Rather risking a catastrophic mini cycle I ditched the sand and implemented the barebottom method.Taking this approach isn't without its disadvantages,because it would also result in a significant decrease in the biological carrying capacity of the system.To counteract this I added a @maxspect Nano-Tech Bio-Block, I can assure you that it works and won't crumble like other biological filter media in the market.Currently the IM Nuvo Fusion 10 is running at dkh 8.0-8.15 Calcium 430 Magnesium 1300 NO3 1ppm PO4 0ppm.I will do another update in the following months.Hide
Most orders under $39 ship for only $5.99 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.
free shipping for orders $39+
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 $39 or more!
free faster shipping for orders $250+
Over 90% of shoppers receive their orders within 1-2 business days. Upgrade from free economy shipping to faster shipping for only $5.99—or spend $250 and we'll upgrade you automatically!
need your order even faster? no problem!
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.
buy it today and we'll ship it today
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.
live plants, live foods, and frozen foods delivered to your door
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!
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.
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 Most Products
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.
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
