1 bottle each of 1 ppm, 10 ppm and 100 ppm nitrate calibration fluids.
Part #: 270521 Description: 3/4" FPT Threaded Single Union Ball Valve Note: While this fitting has a union, it is not designed to seal/hold water when the union is removed. The union is primarily for maintenance of the ball valv...
American Marine Pinpoint Conductivity Fluid 60ml PINPOINT® Conductivity Calibration Fluid 60ml 45.0 µS standardized fluid for calibrating the PINPOINT® Conductivity Monitor
Attractive Blue Color outer casing
For aquariums up to 3/4 inch Thick
Includes with removable stainless steel blade for glass aquariums and plastic blade for acrylic aquariums.
Roll of 1/4" Reverse osmosis Tubing. Made in the USA!
The Marine Depot RO tubing is made with FDA-approved materials. It is flexible and non-toxic so works great for aquarium plumbing and drinking water applications. The tubi...
Potassium is a major element in sea water like Calcium, and is concentrated with ca. 390mg/L.
K-Balance contains multiple potassium salts in high concentration. Our tests in several tanks have shown the benefits in color and grow...
3 Gallon Pictope - Replacement 9 Watt Lamp 2 pin configuration
Bulb length: 6.5in
For AquaClear 110 and "500"
Mechanically filters dirt and debris
Tailored fit prevents bupass
Large capacity for waste capture
Porous construction provides numerous bacterial attachments
Long lasting ...
DC24 to Bare wire cable - 10’
For the DIY hobbyists out there. This cable connects to the 24VDC accessory connections on the 1LINK module. This cable has two bare (tinned) wires on the other end so you could connect it up to a ...
Helps provide natural day/night cycle for your fish, plants, or live coral.
Dual Timer for Aquarium lighting devices. Top outlet controlled by timer, bottom outlet is continuous.
Regulate your aqua...
Sunlight Supply Shield Size: 23 Inch 4-lamp Dimensions: 22.875" x 7.875" x .118"
A water flow accelerator is a great way to add extra water flow to your aquarium. There are several styles available and some can increase waterflow by up to 400%! By increasing water circulation, you can help to increase oxygenat...
Green food is made from easily digested herbal ingredients, including spirulina algae. The food contains essential nutritive and regenerative substances, as well as vitamins and trace elements, that stimulate vitality, growth and ...
Magnesium Complex 500ml Important element for stony corals and calcareous algae.
Recommended in any tank system. Optimum level of 1200 – 1280 mg/L. Dosing 3 ml per 1000 Liter / 250 gallons daily. Regular water tests recommended.
Replacement AquaMaxx Inlet Venturi for EM200 and ConeS Q-2 Protein Skimmers
This optional Kessil Slide Bar (KSASB02) is an extension for the Kessil Mounting Arm (required and sold separately, KSAGN02). It gives hobbyists with wider tanks (24"-32") the ability to mount their Kessil lights precisely where t...
Gauge 16 Power Cord
**Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching under our Low Price Guarantee, please b...
AquaMaxx Small Red Devil Needle Wheel for Sicce PSK-1500 Skimmer Pump
100% cotton pique, high quality, white polo shirt with navy blue trim on the collar and cuffs and the Marine Depot logo embroidered on the left chest.
Super nutritious natural Purple Seaweed chopped into flakes. Ideal for marine herbivores such as Tangs and Surgeonfish, Moorish Idols, Parrotfish, Angelfish, large Butterflyfish, and herbivorous freshwater fishes, such as Cichlids...
3" Clear Heater Cap for Lifegard Aquatics Inline Heater Modules R175021
Dose`n Drop is a manual dosing kit offering an alternate way to the classical vial dosing. It allows users to add products in the aquarium several times through out the week instead of just once every 15 days to maintain more-cons...
Seachem Reef ReactorTM supplies all important elements for optimal ionic balance and robust coral growth and coloration in reef aquaria. It is intended for use in calcium reactors where it is dissolved slowly with the addition of ...
1LINK Male - Male cable - 10’
4-pin male to male cable many hobbyists have been waiting for. It is ten feet long. This cable allows you to connect your DOS to the 1LINK thereby eliminating the need for the DOS to be connected t...
API betta view 1 gallon. This acrylic corner tank includes a lid, battery operated 7 color LED lights (batteries not included), API betta food and stress coat. This tank can be placed anywhere in the house, since there are no p...