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Old 04-24-2008, 11:32 AM   #1
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Glass tank tops on or off? Heat concern

I got home last night and found my temperature climbed from 78 to just over 80 in the matter of 10 hours with no lights on. I currently have glass tank top on, but wondering should I keep it off or remove a section of it to allow better airflow and gas escape?




tank info: My tank is a 58 gal with 10gal sump. I currently have 70 lbs of LR and lighting is a Coralite Lunar aqualight deluxe--96w 10,000 daylight bulb and 96w blue actinic bulb.

My tank recently cycled, and I have some snails and blue leg hermit crabs working on some algae left over from the previous owner of my LR. I am holding off on my first fish purchase for a couple of weeks.
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Old 04-24-2008, 11:57 AM   #2
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Did the heater get stuck on or do you notice a pump running hot? While a 2 degree jump isn't bad in 10 hrs, I would want to find out what made it go up.

You should have those cover off for both reasons you mentioned. It will also help your pH by leaving the top opened.
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Old 04-24-2008, 12:03 PM   #3
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the only reason to have a cover on would be so a fish doesn't jump out onto the floor. Do you have any suicidal type fish in your tank? I have probably the same light fixture as you and when I had my glass top on you could touch the glass and feel the heat. My water level was almost touching the glass top and it acted as another heater. I now go topless.
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Old 04-24-2008, 12:20 PM   #4
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Even if you have fish that may jump it is better to use egg crate rather then glass tops. In SW you really want the surface of the water to be exposed to the air.
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Old 04-24-2008, 12:21 PM   #5
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I am going to investigate the heater a bit more, but I believe it is working fine. I had it set at about 76 so it hasn't been on in awhile--at least the light hadn't been on, but like a said I am going to investigate that a bit more.

Right now I have no fish in the tank, but my first purchase was going to be a pair of O. Clowns and then build on a few compatible fish as time goes on. From my FW days, I just always had a cover because of jumpers. I purchased this set up used and it came with both a 3 piece glass top as well as a canopy. Decided not to use the canopy and now unsure of the glass top. Jusst trying to find out what everyone else does. Thanks!
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Old 04-24-2008, 12:24 PM   #6
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I am definetly thinking of going the eggcrate route. Thanks Ziggy. Do youjust hit your local HomeDepot and cut it to size?
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Old 04-24-2008, 01:20 PM   #7
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Yep, HD or Lowes has them in the lighting section.
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Old 04-24-2008, 01:24 PM   #8
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This may be dumb, but is it better to get it in white or would black be a better color? I am just trying to think what would blend better, cleaning, etc.
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Old 04-24-2008, 02:21 PM   #9
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You`ll really be glad you got rid of the glass top. I think most folks use white.
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Old 04-24-2008, 02:28 PM   #10
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I use the white. The best way I have found to cut the eggcrate is using side cutting pliars. Just nip your way through it.
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