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Old 12-07-2004, 04:02 PM   #1
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How often do you do your RO/DI top-offs????

I'm learning that with my current setup, I need to add R/O water daily due to evaporation. If not, my salinity/sg creeps a little high. Is this because my tank is still cycling? Sounds like a foolish question, but really. My sg/salinity is "unstable". Sounds like a immature tank, no? Or should I use these daily top-offs as practice for the real thing ( when I actually have things to look at in my tank other than rocks). Not that rocks aren't fun to look at because I've already spent hours staring into my empty tank (I'm not the only one, right? )

Just seems like a lot of water evaporation. The water in my sump drops about an inch each day. I don't have intense lighting, just the coralife 4x96w fixture for a 90gal. Anyway, I was just curious to see how often everyone else does their top-offs in hopes that I wasn't the only one doing it daily.
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Old 12-07-2004, 04:08 PM   #2
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i top off every day after i feed my fish. i lose about a 3/8" every day. i think it is a good practice. the more stable ( no matter what parameter ) the better

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Old 12-07-2004, 04:09 PM   #3
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Get used to it!

It is a normal daily occurence for the sw hobbiest. Some lose a little more or a little less than others.
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Old 12-07-2004, 04:30 PM   #4
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I top off 2-3 gal. every other day.
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Old 12-07-2004, 04:43 PM   #5
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daily, usually in the evening after work, when i'm checking skimmer cup, temp and equipment.
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Old 12-07-2004, 04:47 PM   #6
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2-3 gallons every 2-3rd day.
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Old 12-07-2004, 05:07 PM   #7
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hehehe, I'm plumbed directly into my ro unit. I haven't touched a bucket in months.
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Old 12-07-2004, 05:27 PM   #8
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Prior to my 125 gal setup w/sump, i had a 75 gal with a canister. I did not have to top off the canister setup much, but with my current setup, i top off every other day. I have decided to go with an auto top off system (ultralife float switch and PH) so that i don't have to worry about it so much. I tried a cheap way - setting up an airline and using a syphon (which dripped water in). This worked but was a PITA, so I ponyed up the $ for the float switch. Ordered it from Marinedeport cause of the good feedback on this forum. $59 for the switch and $14 for the PH. Can't wait till it arrives!!!!!!!!!!!!11

Jim
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Old 12-07-2004, 05:52 PM   #9
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I usually top-off in the morning, after work, and at bed time for my nano tank if I'm not using my auto top-off unit. I use ro/di or distilled water.
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Old 12-07-2004, 06:57 PM   #10
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...installing an RO/DI system... it will top off daily.
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