pinkish mold in dirt
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Old 08-24-2015, 11:45 PM   #1
yell0r0b
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pinkish mold in dirt


Need advice. I have a 100g tank with Miracle grow Organic choice potting mix as a dirt bottom and have capped it with black diamond san blasting sand on both ends with pebble gravel in the middle. It measures about 1.5 inches for the dirt and same measurement for the cap.

The tank has been set up for about 2 months now and 1 month ago it has been starting to grow some pinkish mold in the dirt there is also greenish mold in another section. The cap has nothing, just the dirt.

I tried searching if others had similar problems, but didn't find anything. Anyone have advice of what this is and how to fix it?

Something noteworthy is that tank is set up in the front entrance and does get direct sunlight for only about 1 hour in the day.

http://www.plantedtank.net/forums/pH...24_162311c.jpg

Should I redo the aquascape? is the dirt too thick?
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Old 08-25-2015, 12:28 AM   #2
Mariostg
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Where the substrate meets the glass, there can be all sort of things growing there depending on amount of light and high nutrient availability. You could try placing something dark against the glass to block the light completely and see if that helps.
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Old 08-25-2015, 01:01 AM   #3
yell0r0b
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good idea..

I will try that.. Doing so concerns me a bit though because it is kinda just covering the problem. WOuld and increase in mold buildup be harmful to the plants and fishes?
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Old 08-25-2015, 01:09 AM   #4
Mariostg
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At least it will tell you if the growth is caused by the light. Some people don't put soil against the glass to avoid seeing the king of stuff. They put the soil leaving a space on side and front glass then fill the gap with sand or gravel. Personally I find it interesting. But that's just me.

I doubt it will be a problem for your fauna. Can't be worse that newly soaked driftwood that becomes covered with white fluffy fungus.
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Old 08-25-2015, 01:17 AM   #5
yell0r0b
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true, thanks for advice.

I was my first time using soil, wasn't sure about the different layout techniques. I wanted to layout to see the different layers of dirt plus cap, looked more interested to me. But now the exposed dirt came back to bite me. I will try to the cover up method.
Thanks again
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Old 08-25-2015, 02:16 AM   #6
Mariostg
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No sweat. But it is interesting indeed. My miracle gro tank had an explosion of tubifex an I can see them litterally drilling in the soil. The whole layer of sand went straight down to the bottom. I don't think I could see it if the soil wasn't against the glass.

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