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The CPR AquaFuge

TM

 2 refugium is designed to allow you to culture live food items, macro algae, 

damaged or newly propagated corals, and much more without the risk of losing these items to 
predators or other conditions in the main tank.  The AquaFuge

TM

 2 refugium simply hangs on the 

tank and requires no supplemental plumbing.  The specially designed baffles and outlet prevent 

most substrates from being disturbed while allowing enough water flow to eliminate “dead” areas.  
With the ability to culture a number of natural food items, the AquaFuge

TM

 2 will benefit the 

carnivorous organisms in the main tank, and with the ability to grow various species of macro algae 
in a controlled environment, the AquaFuge

TM

 2 can actually help to reduce the growth of nuisance 

algae in the main tank. 

 
To place your AquaFuge

TM

 2 into operation: 

 
1.  Open the packaging carefully and inspect the unit for damaged or missing parts.  You should 

have: 

 

 

(1) Refugium body 

  (1) 

Tunze 

Comline 

900 

Powerhead 

  (1) 

Inlet 

assembly 

 

 

 

 

If any items are damaged or missing, please contact your dealer immediately. 

 
2. 

Do not use the interior brace to carry or move the refugium as this will weaken the structural 
integrity of the unit. 

If your aquarium has an opening that is large enough for the powerhead to 

slide in, then attach the powerhead to the refugium by inserting the outlet of the powerhead 
into the opening of the inlet assembly. Some acrylic tanks have small openings, so you may have 
to attach the powerhead to the refugium from inside the aquarium. Allow the AquaFuge

TM

 2 to 

sit on the rim of the tank using the braces as support.  The AquaFuge

TM

 2 can accommodate rim 

sizes up to 2” wide.  For narrower rims, tighten the black adjustment screws on the braces to 

prevent the AquaFuge

TM

 2 from sliding forward or backward. 

 
 
3. 

Ensure that the AquaFuge

TM

 2 is parallel to the back of the aquarium by using the adjustment 

screws on the base of the refugium.  Make sure that the powerhead is fully submerged in the 
water

.   

 
 
4. Before placing the AquaFuge

TM

 2 into operation, it is recommended that you now add any 

substrate that you plan to use to minimize clouding of the water.  Once the unit is part way filled 
you may want to unplug the powerhead for a short time to allow fine sediment to settle. 

 
 

5. 

Make sure that the powerhead is completely submerged and plug in the powerhead.

 

 
 
6.  The Tunze powerhead included with your AquaFuge

TM

 2 has an adjustable flow rate. Rotate the 

 

blue impeller cover left or right to increase or decrease the flow to reach your desired flow rate. 

 
 
7.  The powerhead that feeds water to the refugium should be disassembled and cleaned at least 

every 4 - 6 months to ensure optimal performance of the AquaFuge

TM

 2.  

 

See following page for instructions. 

 

 

AquaFuge 2 Hang-on  Refugium 

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