Danny Inferno Posted February 8 Share Posted February 8 Can anyone tell me what this is? It started from a catfish chip. This is my first live planted tank and I already have biofilm growing on the wood, but it doesn't look like that? Is it harmful? Do I leave it? Thank you!! Link to comment Share on other sites More sharing options...
Guppysnail Posted February 8 Share Posted February 8 Remove it. Good rule of thumb is any uneaten food you remove after 12 hours. That is fungus and bacterial colonies. Beginning to break down the wafer that is how nature disposes of all unnecessary things. 2 Link to comment Share on other sites More sharing options...
Danny Inferno Posted February 8 Author Share Posted February 8 Thank you! 1 Link to comment Share on other sites More sharing options...
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