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  • MC120 PH Monitor w/Probe & Mounting Kit - Milwaukee Instruments

    MC120 PH Monitor w/Probe & Mounting Kit - Milwaukee Instruments

    Milwaukee Instruments

    $87.00
    The MC Monitors are designed to continuously monitor pH, EC or TDS values directly in your reservoir. Each unit features a user select able set-point. An LED visual alarm is activated and flashes when the pH, EC or TDS level rises either Above or Below...
  • MA955 Solenoid Valve for Co2 Dosing - Milwaukee Instruments

    MA955 Solenoid Valve for Co2 Dosing - Milwaukee Instruments

    Milwaukee Instruments

    $38.00
    The solenoid valve is an accessory for the MC122 and the MC125 to automate your dosing of CO2 and makes sure that the plants of your aquarium are always healthy. MA955, solenoid valve, is supplied with 1.5 m cable.
  • CarbonDoser Electronic CO2 Regulator

    CarbonDoser Electronic CO2 Regulator

    CarbonDoser

    $439.99
    The new V2.0 allows for the aquarist to position the CO2 cylinder out of the way in a remote area. Then mounting the "box" anywhere such as up on a board with all the electronics/pH controllers/ETC The 1/8" tubing from the Reg to the Box is...
  • CarbonDoser CO2 Check Valve

    CarbonDoser CO2 Check Valve

    CarbonDoser

    $29.99
    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...
  • 5 lb CO2 Cylinder – Aluminum - Perfect for Calcium Reactors

    5 lb CO2 Cylinder – Aluminum - Perfect for Calcium Reactors

    Generic

    $79.99
    This tank is one of our best and most popular portable cylinders. Being a 5 lb CO2 tank, it weighs far less than steel and still has more than enough capacity to get the job done. Perfect to refill with CO2. It’s also a great tank for...
  • 2.5 lb CO2 Cylinder – Aluminum - Perfect for Calcium Reactors

    2.5 lb CO2 Cylinder – Aluminum - Perfect for Calcium Reactors

    Generic

    $69.99
    Compact but mighty new aluminum 2.5 lb CO2 cylinder. The ideal tank for so many uses. It’s perfect to pour beer and beverages at home, in addition to great pouring on the go. Plus, it’s a great portable tank for light welding and...
  • NR818 Nitrate Reducing Sulfur Reactor GEN 3 - RED - Geo's Reef

    NR818 Nitrate Reducing Sulfur Reactor GEN 3 - RED - Geo's Reef

    Geo's Reef

    $775.00
    The NR818 shown below will hold roughly 20 pounds of sulfur media in the chamber and is well suited for heavy loaded aquariums up to 300-600 gallons. Nitrate Reducing Sulfur reactors are the most underrated methods for reducing nitrates. For those with...
  • NR618 Nitrate Reducing Sulfur Reactor GEN 3 - RED - Geo's Reef

    NR618 Nitrate Reducing Sulfur Reactor GEN 3 - RED - Geo's Reef

    Geo's Reef

    $549.00
    The NR618 shown will hold roughly 15 pounds of sulfur media in the chamber and is well suited for heavy loaded aquariums up to 200 gallons. Nitrate Reducing Sulfur reactors are the most underrated methods for reducing nitrates. For those with large...
  • Classic CR818 GEN 3 - 8" Calcium Reactor RED w/Pump - Geo's Reef

    Classic CR818 GEN 3 - 8" Calcium Reactor RED w/Pump - Geo's Reef

    Geo's Reef

    $775.00
    *******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* The Classic CR818 GEN 3 will hold 24 pounds of large grain media and is well suited for large SPS reef displays and...