Mold in fish tank?

  • We are currently upgrading MFK. thanks! -neo
It seems to be mostly gone now, still a little bit im scooping out everyday. Soon though i'll have no sand left in there, so i'll have to find the pfs soon. Besides, its prob better for a juvenile bichir, i worry everyday that he might swallow a rock and die (The sand i hae has little rocks in it)...

How should i treat driftwood when i buy it? wash it with scalding water, boil it, etc? Dont want this mold outbreak to happen again..
 
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