Powdery black stuff in my tank. What should i do?
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Powdery black stuff in my tank. What should i do?

This is a discussion on Powdery black stuff in my tank. What should i do? within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> Hi all, I am new to this forum, and have come to enjoy it. I have a problem and dont know what to do? ...

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Powdery black stuff in my tank. What should i do?
Old 04-16-2009, 03:33 AM   #1
 
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Powdery black stuff in my tank. What should i do?

Hi all,
I am new to this forum, and have come to enjoy it. I have a problem and dont know what to do? I have a 300litre tank with tetra's and Gourami's and plecos etc. Total of 38 fish. I use gravel as a substrate. I have a E-Heim Aquaball Internal Filter 650l/h and a 900l/h gutter filter which i recently converted to an External BioFilter ie. using bio-rings, charcoal and aquarium wool. This problem which i experience started prior to me converting the filter though. I notice some fine black powdery deposits on the internal filter as well lots of it on the plants and on the edges of the leaves. I conducted 3 water changes (10-20%) in the past 3 weeks, but that doesnt seem to help. What is it and what should i do? Concerned...
PS. I have attached a photo of my work in progress tank. I am treating the driftwood which i intend to put in this weekend as well as add more plants.
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Old 04-17-2009, 10:13 AM   #2
 
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Hi samlin, and welcome to the forum.

Can you post a clear photo of the "black stuff" on one of the plant leaves so we can see it?

Byron.
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Old 04-17-2009, 02:17 PM   #3
 
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Maybe the filter is too powerful and powdered the charcoal. Ive had this happen about 3 years ago. Its not bad unless you leave it there for about a week or so. Just change all the water as soon as you can. Dont forget to take out the filter with charcoal. You could get a weaker filter or just buy a small regular one. I dont seem to be having any problems with those.
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