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Tanks, stands, lids
Canister filters, HOBs, protein skimmers, rollmats
Planted LEDs, high-actinic coral LEDs
Heaters, chillers, electronic controllers
Return pumps, wavemakers, gyres
Aquasoils, sands, dry reef rock, driftwood
Conditioners, RODI systems, marine salt mixes
Plant fertilizers, liquid CO₂, reef dosing pumps, calcium & alkalinity
Tools, food, testing, and the finishing touches
In community tanks
Chosen by aquarists
5,380 matching items · Most used first
Reef Octopus
The VarioS 6 Return Pump Controller is a smart and powerful control unit for precise management of VarioS return pumps in marine and reef aquariums. Advanced digital control with multiple speed and flow adjustment modes, wave simulation for natural reef-like movement, and easy-to-use interface.
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Reef Octopus
The VarioS 6-S Skimmer Pump Controller is a smart and powerful control unit for precise management of VarioS skimmer pumps in marine and reef aquariums. Advanced digital control with multiple speed and flow adjustment modes, wave simulation for natural reef-like movement, and easy-to-use interface.
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Reef Octopus
The VarioS 8 Return Pump Controller is a smart and powerful control unit for precise management of VarioS return pumps in marine and reef aquariums. Advanced digital control with multiple speed and flow adjustment modes, wave simulation for natural reef-like movement, and easy-to-use interface.
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Wave GenerationReef Octopus
The VarioS Controller Mountable Cradle is a practical mounting accessory designed to securely hold all VarioS controller models; neatly installs on any vertical surface to keep your aquarium setup organized, safe, and easily accessible. Simple screw-mount installation; keeps the controller elevated and protected from water exposure.
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Wave GenerationReef Octopus
The Reef Octopus VarioS 2 is a premium, controllable DC circulation/return pump for freshwater and marine aquarium applications, offering variable speed, quiet/efficient operation, advanced automation features, and dependable water flow. Features a detachable controller with mount, ceramic shaft with propeller bearing, 5 speed settings, float switch connection, dual feed modes (15/60 min), and 0-10V 3rd-party control for HYDROS, APEX, and Reef Angel; max flow 792 GPH, max head 13 ft, 25W max, DC 24V. Note: not a pressure-rated pump.
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Wave GenerationReef Octopus
The Reef Octopus VarioS-2S is a controllable DC pinwheel skimmer pump using the latest variable speed flow technology for refined control, enhanced performance, and efficiency. Includes pump, VarioS controller, power supply, venturi, airline, and 1 in output union; controller offers 5 speeds, float switch, dual feed modes, and 0-10V 3rd-party control; true slow startup. Replacement pump for Classic 150INT/NWB 150, Diablo DCS 150INT, SRO 1000INT/2000INT, REGAL 150INT/150SSS, and POV-DC1.
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Wave GenerationReef Octopus
The Reef Octopus VarioS-2S/RODC-2500S Pinwheel Impeller is a replacement DC skimmer pump pinwheel impeller for the VarioS-2S/RODC-2500S pump.
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Wave GenerationReef Octopus
The Reef Octopus VarioS 6 is a controllable DC circulation/return pump featuring a detachable controller with mount, ceramic shaft with propeller bearing, and the latest variable speed flow technology for refined control, enhanced performance, and energy efficiency. Includes pump, controller, float switch, power supply, input/output unions, stepped barb output fitting, and protective intake screen; 5 speeds, float switch, dual feed modes, 0-10V 3rd-party control; max flow 1,720 GPH, max head 16 ft, 70W max, 36V DC. Note: not pressure-rated.
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Wave GenerationReef Octopus
The Reef Octopus VarioS-6S is a controllable DC pinwheel skimmer pump using the latest variable speed flow technology for refined control, enhanced performance, and efficiency. Includes VarioS 6S pump, VarioS controller, power supply, venturi, airline, and 1 in output union; controller offers 5 speeds, float switch, dual feed modes, and 0-10V 3rd-party control; true slow startup. Can be retrofitted to fit Classic OTP skimmers (OTP-GT pump models) such as NWB250.
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Wave GenerationReef Octopus
The Reef Octopus VarioS-6S/RODC-5500S Pinwheel Impeller is a replacement DC skimmer pump pinwheel impeller for the VarioS-6S/RODC-5500S pump.
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Wave GenerationReef Octopus
The Reef Octopus VarioS 8 is a controllable DC circulation/return pump featuring a detachable controller with mount, ceramic shaft with propeller bearing, and the latest variable speed flow technology for refined control, enhanced performance, and energy efficiency. Includes pump, controller, float switch, power supply, input/output unions, stepped barb output fitting, and protective intake screen; 5 speeds, float switch, dual feed modes, 0-10V 3rd-party control; max flow 2,700 GPH, max head 18 ft, 98W max, 36V DC. Note: not pressure-rated.
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Tank & FurnitureUltum Nature Systems
A flow kit designed for a perfect fit on all UNS Dual AIO rimless aquariums (excluding the Complete 30A AIO), making it simple to connect VCA nozzles for improved flow control and water distribution. The VCA Random Flow Generator features a patented internal design that creates natural, randomized flow without mechanical components. It boosts circulation, keeps debris suspended for more effective filtration, and maintains gentle flow that is safe for corals and won't disturb substrate. Includes 1 Flex-Series Random Flow Generator nozzle (printed in reef-safe TPU) and 1 20mm outflow adapter. Recommended flow rate 120-450 GPH.
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OtherUltum Nature Systems
Flow upgrade kit for UNS Dual AIO aquariums with a Vivid Creative Aquatics 1/2-inch Flex-Series Random Flow Generator nozzle and 20mm outlet adapter. Creates randomized flow to reduce dead spots without adding extra equipment; 3D-printed TPU and PETG.
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Tank & FurnitureUltum Nature Systems
A VCA outflow adapter and Random Flow Generator kit that upgrades the Ultum Nature Systems Reef System with improved water movement and circulation. Designed to fit onto the return plumbing, the adapter provides a subtle downward angle to position the Loc-Line return nozzle deeper into the tank for better flow direction. The patented internal design creates natural, randomized water movement with no moving parts, electricity, or added heat, enhancing flow and keeping debris suspended for better filtration without disturbing delicate corals or substrate. Includes 2 Flex-Series Random Flow Generator nozzles, 2 two-segment genuine Loc-Line, and 2 25mm outflow adapters. Recommended flow rate 500-1340 GPH.
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Wave GenerationNeptune Systems
The Neptune Systems VDM module adds two 0–10V variable-speed ports (four independent channels) to any Apex base unit, enabling Apex Fusion control of compatible pumps and LED fixtures such as Tunze pumps (6105/6155/6255) and 0–10V-dimmable Kessil lights. It connects via AquaBus (3 ft cable included, dual ports for expansion) and does not support 1Link accessories or digital/wireless protocols.
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Wave GenerationEcoTech Marine
The Ecotech Marine Vectra Battery Backup Booster will plug in directly between the controller on the Vectra series of pumps and the battery backup allowing your aquarium system to have flow in the event of a power outage. Connects in seconds Essential in case of a power outage Auto On/Off mode conserves battery Allows the Vectra series of return pumps to be used with the Ecotech Battery Backup.
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Tank & FurnitureEcoTech Marine
Perfect for submersible return pump applications. The Ecotech Marine Vectra Barb and Screen kit will allow your Vectra pump to use standard soft tubing such as braided vinyl or silicone tubing.
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Wave GenerationEcoTech Marine
The World's Smartest Return Pump Mobius App Control for iOS & Android Devices Near-Silent Quiet Drive Technology Easy Maintenance with Built-In Unions Controllable Flow up to 3100 GPH With some of the most advanced pump technology on the market, today Ecotech has stepped it up another notch. With the addition of Ecotech Marine's Mobius app compatibility, Vectra return pumps have never been more versatile or easier to use, and their QuietDrive technology keeps the noise of the pump to an absolute minimum in almost any application.
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Wave GenerationEcoTech Marine
Your return pump is a vital part of life-support for your system. Don't leave your pump unprotected.
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Wave GenerationEcoTech Marine
Replacement impeller for the EcoTech Marine Vectra L2 pump.
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Wave GenerationEcoTech Marine
The World's Smartest Return Pump Mobius App Control for iOS & Android Devices Near-Silent Quiet Drive Technology Easy Maintenance with Built-In Unions Controllable Flow up to 2000 GPH With some of the most advanced pump technology on the market, today Ecotech has stepped it up another notch. With the addition of Ecotech Marine's Mobius app compatibility, Vectra return pumps have never been more versatile or easier to use, and their QuietDrive technology keeps the noise of the pump to an absolute minimum in almost any application.
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Wave GenerationEcoTech Marine
Your return pump is a vital part of life-support for your system. Don't leave your pump unprotected.
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Wave GenerationEcoTech Marine
Replacement impeller for the EcoTech Marine Vectra M2 pump.
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Tank & FurnitureEcoTech Marine
Perfect for submersible return pump applications. The barbed fitting will allow the Vectra pump to use soft tubing for plumbing, while the included screen will keep foreign matter from entering and causing damage to the pump.
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Wave GenerationEcoTech Marine
The World's Smartest Return Pump Mobius App Control for iOS & Android Devices Near-Silent Quiet Drive Technology Easy Maintenance with Built-In Unions Controllable Flow up to 1400 GPH With some of the most advanced pump technology on the market, today EcoTech has stepped it up another notch. With the addition of EcoTech Marine's Mobius app compatibility, Vectra return pumps have never been more versatile or easier to use, and their QuietDrive technology keeps the noise of the pump to an absolute minimum in almost any application.
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Wave GenerationEcoTech Marine
Your return pump is a vital part of life-support for your system. Don't leave your pump unprotected.
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Wave GenerationEcoTech Marine
Replacement impeller for the EcoTech Marine Vectra S2 pump.
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OtherTwo Little Fishies
The Two Little Fishies VeggieMag is a magnetic floating feeding clip for nori, SeaVeggies, and macroalgae, ideal for tangs, rabbitfish, and other herbivores. It mounts on glass up to 3/4" thick, repositions without reaching into the tank, and floats if detached for easy retrieval.
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OtherTwo Little Fishies
The Two Little Fishies Veggie-Mag Feeding Clip Magnet uses a strong magnet to hold your SeaVeggies seaweed clip in place on aquarium windows. Easy to position at any level in the aquarium and easy to retrieve because it floats.
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Substrates & AquascapingUltum Nature Systems
Verdant Stone is a light green natural aquarium rock with subtle white and rust-colored speckles whose green tint deepens when submerged, standing out against darker substrates. Suited for soft, meadow-like aquascapes or as a base for driftwood, it also works in terrariums and paludariums; sold in 10, 20, and 30 lb packs and should be rinsed before use.
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