Why Opentop tanks

highlander

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I was just wondering why most people dont put a glass cover on the top of their tank to prevent evaporation? Is it to increase oxygenation of water?
 

Neil H

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Exposure to oxygen rich air helps in oxygenating the water yes,
However evaporation is extremely important from a heat transfer perspective, an open top will negate or delay the need for a chiller.
Putting glass over the top would also diffuse some of your light ... reducing light penetration!
 

OCELLARIS

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due to the density of saltwater the O2 levels contained in it is way less than fresh water, so the more aeration the better, does anyone know a method of introducing O2 into your saltwater besides airstones
 

crispin

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So your TILE Fish dont live up to their names!

and they NOT the only jumpers! In my very limited opinion i'd leave it open if i had a canopy(open at the back) else close it off with covers...and leave evaporation to the sump:)
 

Rory

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Ocellaris, skimmers are very effective at oxygenating the water...
 

Warr7207

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I was just wondering why most people dont put a glass cover on the top of their tank to prevent evaporation? Is it to increase oxygenation of water?
IMO, the biggest problem is your lighting. I have to consistently clean my glass crossbraces because of salt build up. The salt stops maximum light penetration. I can only imagination the mission of having to remove one or many pieces of glass every week for cleaning purposes.

I have seen tanks with sliding glass covers but way to much work keeping it clean.
 

Tobes

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I agree, open top is better. Cleaning sliding covers is gagga :p
Better for light, better for evaporation, not better for flying fish :whistling:
 

Ocean

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Egg crate you cover it with egg crate?
 

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