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making 10 gal sump

  1. DIY Forum
    I was thinking about making a 10 gal sump for my 55gal reef tank! Here is what my problem is; My tank is already started and is 6 months old! I really want to make a sump and take the stuff out of the tank. Ex. Skimmer, heater! Is it possible to make a sump without cutting holes in the main...
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