| Re: Newbie with ?'s
What I have done and its easy,, 10% would be 5 gallons so get a 5 gallon bucket and take out five gallon. Dump it , flush it what ever you chose and slowly add the new 5 gallons of fresh saltwater. I have a much bigger tank and change 25 gallons at a time, but I mark on the outside of the tank with a marker where the water line is after I take out 25 gallons so I dont have to worry about taking out to much. Every water change I suck out the water with a VAC to that line and add that much back in.
When adding the New water back in monitor the salinity. I sometimes have to add some fresh RO water. So the salinity doesnt jump up...
Good luck.... You will be fine.
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265 Gallon Reef built into basement wall. Lighting = 6x250 watts MH, 2x96 watt PC ,and 2x140 watt VHO for a total watt of 1,972 watts  . New addition on 4-14-07 of 100 gallon sump and 100 gallon refugium. I think I have lost my mind. Gotta love this hobby    Vicki
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