gravel turning yellow?`
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gravel turning yellow?`

This is a discussion on gravel turning yellow?` within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> some of my white stones are turning yellow. and something is growing on the front of the tank. how do i get rid of ...

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gravel turning yellow?`
Old 12-11-2006, 06:08 PM   #1
 
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gravel turning yellow?`

some of my white stones are turning yellow. and something is growing on the front of the tank. how do i get rid of it?
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Old 12-11-2006, 06:11 PM   #2
 
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Hi.

That is probably diatoms or brown algae. How much lighting do you have? It can be brought in if your tank is dimly-litted. I had that when my tanks were not given enough lighting.
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Old 12-11-2006, 06:24 PM   #3
 
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ya i only have a under cabinet foresnct light .
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Old 12-11-2006, 06:29 PM   #4
 
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Quote:
Originally Posted by paisley_tele
ya i only have a under cabinet foresnct light .
What's the size of your tank and how many wattage does your light have?:)
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Old 12-11-2006, 07:05 PM   #5
 
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Yellowing gravel, I have only seen this in a tank that I used ammonia rocks in and they turned yellow when the rocks were unable to absorb any more. Wipe your finger across the stuff and tell us if it comes off easily and if it has a strong odor to it. If it does then most likely diatoms and lighitng will help, as the tank agaes it will also help as the film develops on the glass and the diatoms lose their food source.
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