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Old 10-11-2004, 07:06 PM   #11
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Shelton: I dont top-up at all at the moment. I dont need to. My SG doesn't change over the 2 weeks between water changes, and my water level doesn't change either. So, I seem to be lucky in that I don't have to do this part of the hobby.

I want to be able to get around the heat problem without causing evaporation, because I don't want to have to top-off when I've never needed to before. If I can open the tank lid and solve the heat issue without effecting evaporation, then I'm looking for a way to tackle the heat problem in the same way (ie. in the lid, not the water) but with the lid down. ie. not causing unnecessary evaporation. If I can avoid extra work, then I will do! As we all would, if we have the choice!

I do a lot of work with my tank, as we all do, so anything that can be avoided is a bonus
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Old 10-11-2004, 08:44 PM   #12
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I hear you extra work is something I can do with out also. try 1 fan and see what happens can't hurt......
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Old 10-11-2004, 08:46 PM   #13
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Yeah, gonna get someone I know who's good with electronics to do a small system with a thermostat in it...

Only problem is the fan can't be any taller than 7.5cm. Could be tricky... :P
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Old 10-11-2004, 08:53 PM   #14
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??????? 7.5 cm?????in inches what is that 8O ...... US here and when I went to school we did not do much with the metric system.
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Old 10-11-2004, 09:27 PM   #15
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Hehe...not too big, 3".
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Old 10-12-2004, 03:36 AM   #16
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Quote:
Originally Posted by MarkW19
Shelton: I dont top-up at all at the moment. I dont need to. My SG doesn't change over the 2 weeks between water changes, and my water level doesn't change either. So, I seem to be lucky in that I don't have to do this part of the hobby.

I want to be able to get around the heat problem without causing evaporation, because I don't want to have to top-off when I've never needed to before. If I can open the tank lid and solve the heat issue without effecting evaporation, then I'm looking for a way to tackle the heat problem in the same way (ie. in the lid, not the water) but with the lid down. ie. not causing unnecessary evaporation. If I can avoid extra work, then I will do! As we all would, if we have the choice!

I do a lot of work with my tank, as we all do, so anything that can be avoided is a bonus
Heheheheheh, well all I can say is you are the first person I've known in this hobby so far that doesn't topup??? I know what you mean about work, but it takes me less than 5 mins to go down to the shed, get a ltr of RO water in my jug & come & pour it in the tank as I'm normally buggering about doing other things?

Anyways if 3" is what you can use that would be a standard 80mm fan. these tend to be whiny & when you lower the voltage of course you lower the amount of air movement... you might just be better off with some more holes in the lid? If you can get hold of a secondhand one better to try before you buy

Cheers Shelton.
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Old 10-12-2004, 08:13 AM   #17
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You could try cutting some vents in the canopy. Some vents near the bottom and then at the top would allow the air to naturally circulate. It may be just enough cooling to drop the .5C you want.
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Old 10-12-2004, 04:00 PM   #18
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If I cut holes in my lid, then the lights will shine through them, casting strange patterns on the wall...

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Old 10-12-2004, 09:44 PM   #19
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go to ebay and type in aquarium cooling fan and you will get a few hits. I was looking for what I bought, its not there any more.....
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Old 10-13-2004, 02:43 PM   #20
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Maybe try the eggcrates for lids. Check the hardware store in the lighting section. I think they're 2' x 4', white plastic grids for ceiling light fixtures.
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