External pump

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#1
I was thinking of adding refugium reactors to my frag tank and was thinking of running it through a external pump to suck water and pass it through a two reactors. What external pumps do you guys recommend? Was looking at the hydor but not sure if it is externally capable
Or I can do a canister but will be enough to push it through a reactor as well.
 
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joseserrano

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#4
I would not do that, just do submersible. Those reactors require more flow than you think, and you should really be pulling water through anything. I dont see the advantages.
 
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