Am I better off without glass covers?
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Old 10-31-2012, 05:41 PM   #1
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Am I better off without glass covers?

Hey there,

I justed started using the glass covers that I had cut to size to allow room for canister hosing and the fact my hob is on the side, its an hos.

I have injected co2 and from what I read covers stop some of the loss due to mixing with o2. Obviously it helps with evaporation and jumpers too. Only lost one lf zebra danio a few months ago during an escape attempt.

I noticed it is not as bright in the aquarium as before. I am working with 2 watts/gallon on my 75g, and not even sure if its that because my odyssea t5 may not put out the rated amount because of cheaper ballasts etc. So I can't afford to lose much light. I do plan to buy an additional light in the future, but I'm still in debt over everything I've done so far.

I have been researching and have conflicting thoughts. Some say you lose very little 5%, some say more including all UVB rays(I don't know how important UVB is in freshwater plants). Some say they never use them, some say use with no problems.

Also the glass is green from the side, so it's the typical iron content one, which diminishes more light.

Does the blockage of light outway the benefits to evaporation, and or co2 preservation using glass covers?

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Old 10-31-2012, 06:42 PM   #2
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I would put a cover over any tank that wasn't in a situation where it is nice to look at the tank from the top. Not nice having jumpers!

Any algae? If not it is possible you have exactly the right amount of light now and taking the tops off could put your lighting just over the top.

Check the sticky thread in the lighting forum. Perhaps your fixture is on one of the graphs and can reassure you that your lighting is just fine.
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Old 10-31-2012, 08:12 PM   #3
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Default Using Glass Tank Covers

Hello wag...

Unless you have animals that might get into the tank or fish that might jump out, or you have lighting that requires a glass cover, they aren't needed.

I gave up on covers, because my aquatic plants have grown out of the tank and I wanted to use emersed plants too. I removed the covers and the plants have more room and more CO2 gets to the plants from the room air. The lighting strip I use came with it's own cover so a separate cover isn't needed.

There's a little more evaporation, but I'm used to topping off the tanks a couple of times a week and dose the plants then. The open tank puts more moisture into the air, so no static electricity.

"Fear not my child, just change the tank water."
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