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post #1 of 2 Old 05-14-2011, 12:39 PM Thread Starter
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Tan algae signes

Greetings:

Recently I noticed what appears to be some growth in the gravel bed on the front side of the tank growing downward to about 1 inch. I checked the water parameters and they are right on the mark. The light a 25 Watt 24" tube only runs about 5 hours a day. I reduced the lighting months ago as I was running it for about 10 hours and Algae began to grow on the tank wall in the back of the tank. I removed it and it has never grown back. Do you think that the gravel bed is too rich with nutrients? What might be going on here ?

Ciao,
Don
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post #2 of 2 Old 05-14-2011, 03:36 PM
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Originally Posted by PESCATORI View Post
Greetings:

Recently I noticed what appears to be some growth in the gravel bed on the front side of the tank growing downward to about 1 inch. I checked the water parameters and they are right on the mark. The light a 25 Watt 24" tube only runs about 5 hours a day. I reduced the lighting months ago as I was running it for about 10 hours and Algae began to grow on the tank wall in the back of the tank. I removed it and it has never grown back. Do you think that the gravel bed is too rich with nutrients? What might be going on here ?
If the brownish "growth" is below the gravel surface, along the front glass, that is normal. A photo might help just in case.

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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