Aquarium Gravel Stained - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 2 Old 09-23-2010, 06:00 PM Thread Starter
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Aquarium Gravel Stained

I have a question about my aquarium gravel. It seems to be stained or have some weird coloring on it and I have no idea what it is. My Aquarium water quality is good. I just tested it. Temperature is 78F. The aquarium is 5 gallons, so pretty small and I set it up Mid July. The gravel is lime green and has brownish stains in small groups all over the tank. Just noticed this a few days ago, was never there before.

Any idea what this is and how I can remove it.

I attached a picture to show what it looks like

Thanks for the help,
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post #2 of 2 Old 09-23-2010, 06:15 PM
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Diatoms, commonly known as brown algae. I can see it on the plant leaves too. It is common in new tanks, usually during the first 3 months. Wipe it off the plant leaves with your fingers.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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