PAC PODS are a Refrigerated Food.  These are not LIVE Copepods.  This is a fish food.  Do not dump the entire container into your aquarium, you will nuke it.   Pac-Pods™ are small, nutrition-packed North Pacific...

PAC PODS are a Refrigerated Food.  These are not LIVE Copepods.  This is a fish food.  Do not dump the entire container into your aquarium, you will nuke it.   Pac-Pods™ are small, nutrition-packed North Pacific...

PAC PODS are a Refrigerated Food.  These are not LIVE Copepods.  This is a fish food.  Do not dump the entire container into your aquarium, you will nuke it.   Pac-Pods™ are small, nutrition-packed North Pacific...

These are small pieces.  Pieces range from 2"-5" in length. Increase the beauty of your aquarium landscape with these unique style stones and rocks to look like miniature rock formations. Customize your reef structure with safe, all-natural...

UNUSED - ALL PARTS PRESENT Kessil’s AP9X Mounting Arm is a sleek low profile mounting option for the AP9X. With a new integrated swivel joint, shadowing is a thing of the past. This single arm mount allows for 180 degrees of horizontal rotation...

This is a replacement vial for Mastertronic. It includes one (1) silicon cap.  DOES NOT include stirring magnet.

Replacement syringe & needle kit for the Mastertronic The set includes: 4 Plastic syringes (without needles) 6 Replacement needles

The HYDROS Control X4 PRO Pack includes two Control devices, the Control XP8 and Control X4. Combine these Controls to create a secure and impressive set-up for both saltwater and freshwater aquariums. Connect up to four sensor devices,...

The HYDROS Control X3 Pro Pack includes two Control devices, the Control XP8 and Control X3. Combine these Controls to create a secure and impressive set-up for both saltwater and freshwater aquariums. Connect up to two sensors such as...

Please note: CONTROL XP8 ONLY - Nothing else is included. Achieve Ultimate Security with the HYDROS Control XP8 Power Strip The HYDROS Control XP8 is an eight 120V AC outlet energy bar and can control eight HYDROS WiFi devices with individual power...

Clarifies aquarium water without the mess The Maxspect Nano-Tech Clear Cube is a tourmaline-based brick that breaks down DOM (dissolved organic matter) in aquarium water by dissolving and dissociating of water as a result, keeping your aquarium water...

The IceCap K3 250HOB Protein Skimmer is a compact hang-on-back protein skimmer ideal for aquariums up to 250 gallons. The traditional style cylinder skimmer body shape reduces turbulence to provide optimal performance and its pump is mounted externally...

The IceCap K3 200HOB Protein Skimmer is a compact hang-on-back protein skimmer ideal for aquariums up to 140 gallons. The traditional style cylinder skimmer body shape reduces turbulence to provide optimal performance and its pump is mounted externally...

Please note: CONTROL X3 ONLY - Nothing else is included. Achieve Ultimate Aquarium Control with the HYDROS Control X3 The HYDROS Control X3 can connect to two sensor devices including temperature sensors, water level sensors, and leak detectors. The...

This starter kit includes all essential equipment needed to monitor and control a healthy aquarium including a Control X3 device, HYDROS App, temperature sensor, pH probe, and more. Set up is quick and easy, making this ideal for both beginner and...

The HYDROS Control X3 Monitor Pack includes all essential equipment needed to monitor a healthy aquarium including the Control X3 aquarium controller, HYDROS App, temperature sensor, pH probe, and point leak sensor. Like all...

Terminates the Hydros Collective

Requires a Hydros to Control the Unit The HYDROS Dosing Pump is a simple and affordable way to automate the addition of liquid supplements, trace elements, and two-part solutions to an aquarium. Connect the Dosing Pump to any available HYDROS Control...

The Smart ATO Nano Kit is a plug-and-play auto top-off system made by Autoaqua. Specifically designed for nano and pico aquariums under 50 gallons, this ATO nano kit will automatically monitor and refill evaporated...

FREE ON ORDERS OF $100 OR MORE! Provide FREE cutting-edge reef-keeping information to hobbyists to encourage responsible reef-keeping and sustainability of our hobby.  Reef Hobbyist Magazine is a reef-focused magazine that teaches hobbyists of all...

UNUSED CUSTOMER RETURN   The HC-820M Finnex heater controller uses an advanced digital processor that monitors and controls the water temperature in your aquarium. The heating controller receives temperature data from the remote sensor...

1200 Watts in Total w/Inkbird Controller - We recommend lower wattage dual elements with a heater controller for extra redundancy. We have been on the hunt for a reliable heating element that solves a lot of the issues we currently have with other...

600 Watts in Total w/Inkbird Controller - We recommend lower wattage dual elements with a heater controller for extra redundancy. We have been on the hunt for a reliable heating element that solves a lot of the issues we currently have with other...

400 Watts in Total w/Inkbird Controller - We recommend lower wattage dual elements with a heater controller for extra redundancy. We have been on the hunt for a reliable heating element that solves a lot of the issues we currently have with other...

200 Watts in Total w/Inkbird Controller - We recommend lower wattage dual elements with a heater controller for extra redundancy. We have been on the hunt for a reliable heating element that solves a lot of the issues we currently have with other...

We have been on the hunt for a reliable heating element that solves a lot of the issues we currently have with other heaters in the hobby. We have always had issues with heaters that have built-in controllers and segregating the controller out from the...

We have been on the hunt for a reliable heating element that solves a lot of the issues we currently have with other heaters in the hobby. We have always had issues with heaters that have built-in controllers and segregating the controller out from the...

We have been on the hunt for a reliable heating element that solves a lot of the issues we currently have with other heaters in the hobby. We have always had issues with heaters that have built-in controllers and segregating the controller out from the...

We have been on the hunt for a reliable heating element that solves a lot of the issues we currently have with other heaters in the hobby. We have always had issues with heaters that have built-in controllers and segregating the controller out from the...

Flex hose is excellent for use as drain hose in sumps for wet/dry filters.6 FT X 1" FLEX HOSE

Water Saving Upgrade Kits are probably the most recommended RODI upgrade. If you have proper pressure (65+ PSI) we highly recommend installing the kit, because it will produce water twice as fast as a standard 75 GPD or 100 GPD membrane while cutting the...

Sera marin GVG-Mix is the staple food consisting of carefully manufactured flakes and dried whole food animals for all marine fish that prefer to eat at the surface. The tasty, varied blend is rich in minerals and trace elements such as iodine, and thus...

DAMAGED - SNAPPED in HALF - NEEDS EPOXY LifeRock™ begins as a sunlit piece of Pleistocene era seafloor thriving with living creatures. Over the next 100 millennia and the retreat of the ocean, this ancient piece of seafloor, now well inland, has...

The innovative Abyzz Flow Cannon AFC150 with its high-end design including a titanium rotor unit, titanium mounting frame, and carbon fiber parts consists of the pump itself and a powerful and programmable driver. With an efficiency rating of...

UNUSED - TESTED - WORKS   The flash skimming principle enables highly efficient foam production.  Organic-rich surface water is mixed thoroughly with small air bubbles in the TUNZE® Foamer. On the surface of the air bubbles, pollutants...

THE LISTING IS FOR ONE CONTAINER (NOT TWO) THE PHOTO IS A STOCK PHOTO SHOWING THAT THESE CONTAINERS CAN CONNECT/ARE MODULAR Too many bottles, not enough space? Add our dosing container to your lineup to manage your solutions with ease...

2022 Product Updates: The new model, now has 1.5” venturi plumbing with a 1.5” injector allowing more airflow into the skimmer. It is now also provided with 1/8HP injector pump to run the bigger injector. The skimmer has improved...

After years of experience with CO2 systems, we discovered why consistent "bubble counts" are, most of the time, impossible. Here's why: ALL check valves, even expensive ones, have a "high crp" or "crack pressure" rating (the pressure at which they...

Python airline tubing is non-toxic and ozone safe. The pale blue color makes it virtually invisible in your aquarium. It will stay flexible and never crack or turn yellow. 3/16in inside diameter. Fits all standard pumps and accessories. 3/16" Inside...

UNUSED CUSTOMER RETURN   The Comline® DOC Skimmer 9004 is designed for use in seawater up to 250 liters (66 US gal.). It operates according to the Tunze® Flash Skimming Principle and acquires the water through an efficient surface suction...