Mako Man111
Fishaholic
- Joined
- Jun 11, 2006
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Ok, so I finally got my 105 gallon tank, and my filter (rated to 110 Gallons and will soon be adding another after fish get larger) has like a 3 layer thing, and one of them is carbon. I will be keeping as oscar, jack dempsey, and convict in there and was wondering if there is really any truth to the carbon contributing to the hole in head disease, especially on the oscar?