I just suck 5 gallons out into a pail, to replace the water I have a Maxi-Jet 1200 with a hose on it and pump the water back in that way. It is fast and it doesn't disturb the sand bed. While pumping it in I direct the hose over the rock to wash off any debris that is collecting there.
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65 gallon tank, 3 gallon refugium, 90lbs LR, 50 lbs live sand, Coralife Super Skimmer 125, 24" 250 watt DE Pendant w/14K Hamilton. 1 ocellaris clowns,1 Tomini Tang, 6 line wrasse, 12 turbo grazer snails, 12 nassarius snails, 12 Cerith. Open Brain, Metallic Green Brain, candy cane coral, 1 enchino frags, and 2 maxima clam.
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