Introduction
Corals, fish, invertebrates and even coralline algae are constantly using up calcium and alkalinity. A calcium reactor is a piece of equipment
that helps maintain alkalinity and calcium in a reef tank throughout the day, stability is attained and overall growth is improved. The Octopus
calcium reactors operate by injecting carbon dioxide into the reaction chamber lowing the pH of the water, making it acidic, and dissolving
the calcium carbonate to provide the aquarium with calcium and alkalinity. The effluent (the water exiting the reactor) is high in calcium and
alkalinity with a PH level between 6.6 pH and 7.0 pH. A quality PH test or PH monitor is recommended to getting an accurate PH reading.
DO NOT LIFT A FULL REACTOR BY THE EXTENED FLANGE AREAS OR pLUmBING.
The reactor comes disassembled for shipping. (See the calcium reactor diagram) Failure to follow the assembly instructions could cause your
reactor to leak. Place the reactor as close to your sump as possible, the shorter the hoses the better.
How to Hook Up the Reactor
The preferred method to hook up any reactor is the pressure feed setup.
• Using a small power head placed in your sump and connect the hose to the outlet port.
• Connect the other end to the John Guest fitting. (See the calcium reactor diagram)
Dual setup only - The effluent hose runs from the outlet on chamber 2 back to the sump.
Make sure the effluent hose is above the water line so you can see the drop rate.
We do not recommend the siphon feed to the reactor because it is not reliable feed source to amintain consistant pressure.
Hose Installation
• Connect the female threaded fitting to the top of the pump.
• Slide the hose onto the John Guest fitting. It should fit snugly.
• Slide the other end to the hose on the end of the flange
overhang. (See the reactor diagram)
Dual setup only –
Connect the other hose to the top of the flange
fitting. The other end connects to the lower John Guest fitting on
chamber 2. (Refer to the dual calcium reactor diagram)
• Measure the length from your feeder power head to the needle
valve and cut the hose to length using scissors.
• Cut the tube about 5-6” longer than needed and do not forget
about the rise from the bottom of the sump to the top and back
down to the needle valve.
• Cut to length the remainder of the hose from the top of chamber
2 to the sump. If the hose is not long enough, more can be
purchased from a hardware store, such as Home Depot.
• The hose is 3/8” inner diameter for the effluent/drip line and ½”
for the feed line.
• Hoses for the bubble counter are the 1/8” tubing. Most bubble counters are hung using the tube from the CO2 tank. If you prefer, you can sit
the bubble counter on the base plate.
• Measure and cut the hose to connect to the fitting on your CO2 tank and the other end to the top of the counter, labeled CO2 in.
• Measure and cut the tube from the 1/8” barb fitting on the manifold to the top
of the bubble counter, labeled CO2 out.
If you purchased the regulator gauge, the bubble counter is attached to the regulator.
OCT-CR100 / OCT-CR140 / OCT-CR140D
Thank you for purchasing our REEF OCTUPUS
Calcium Reactor. For optimum performance and safety,
please read this instruction manual carefully and keep
it handy for future reference. Fragile items included
- please be carfeul.
CAlCIUM REACTOR DIAGRAM
