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Old 11-27-2011, 07:29 PM   #1
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Lid Question

So my tank doesnt have a lid right now and it looses water rapidly like an inch and a half every 2days. I would like to put a glass lid on it to keep my salinity at a better balance and to avoid topping it off every 2 days. Im starting a reef tank with a 4bulb t5ho coralife fixture, and dont know if the black strip in the middle of the lid will create insufficient light in that area, Will it do this? If its better to not have a lid for light reasons I am fine with doing top offs.

Last question about a lid will the lid help with evaporation that much if I have to remove like 1/3 of the back of the plastic trim on the lid because of my HOB filter
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Old 11-28-2011, 06:54 AM   #2
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The lid would slow evaporation but its usually not recommended. Its good to have a few inches in between the light and water surface. It promotes gas exchange and just looks cool, I did that on my tank and noticed that it had allot more evaporation but the effects made it worth. I have to add about half a gallon every day but its no problem.
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Old 11-28-2011, 10:49 AM   #3
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I would prefur no lid to get better light into the tank so i may just go with the daily or every other day top off.
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Old 11-28-2011, 06:47 PM   #4
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Sounds good.
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Old 11-28-2011, 06:50 PM   #5
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You can purchase automatic top off devices that will fill keep the water level, and therefore the salinity stable, as well. Some can be hooked directly to an RO/DI system, while other can be gravity feed from a bucket.
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Old 11-28-2011, 07:32 PM   #6
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Can't do an ato with the location of the tank.
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Old 11-28-2011, 09:12 PM   #7
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wow.... loosing upto 1/2gal everyday??

Quote:
Originally Posted by LordErrorprone View Post
The lid would slow evaporation but its usually not recommended.
why is it not recommended??
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Old 11-28-2011, 10:31 PM   #8
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thats alot of water, are you sure there is no leak?
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Old 11-29-2011, 12:01 AM   #9
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Its probably not a half gallon a day but no theres no leak I would deffinitly know about a leak.
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Old 11-29-2011, 09:43 AM   #10
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You might need to top off 2 or 3 times a day to keep your SG from fluctuating to much. An ATO is the best solution. I have a one gallon jug under my 55 and sometimes in the same I have to fill it up twice but at least the SG remains the same.
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