Kauaidoug Posted May 3, 2021 Share Posted May 3, 2021 Hi, I have a 3 month old tank, no algae issues until I noticed this very close growing brown stuff on my mopani wood piece. There is a snail on the picture appears to be eating but my other cleanup crew avoid it, chinese algae eater and corys. Hopefully you can see it. I just noticed it and have no idea what this is. It is not really fuzzy. Should I clean this off. I haven't seen it anywhere else in tank. The first pic shows the darker brown in the middle of the lighter brown. I would say it is thicker than the lighter colored. The second pic is to show how close it is growing. Same brown spot as other image. Mahalo Link to comment Share on other sites More sharing options...
Colu Posted May 3, 2021 Share Posted May 3, 2021 It's looks like bioflim it should go away on its own it's nothing to worry about the Link to comment Share on other sites More sharing options...
Kauaidoug Posted May 3, 2021 Author Share Posted May 3, 2021 Mahalo. It does look like a loogie, talking to the Gourami bout this! Link to comment Share on other sites More sharing options...
Lowells Fish Lab Posted May 4, 2021 Share Posted May 4, 2021 I think I recall hearing that woods can leach carbohydrates that would feed the growth of fungus or bacteria. I've noticed growths like this (though usually white) on malaysian driftwood and spider wood. It always subsides on it's own and in the meantime can make some yummy food for a biofilm eater like your snails. Link to comment Share on other sites More sharing options...
Kauaidoug Posted May 4, 2021 Author Share Posted May 4, 2021 Thank you! Link to comment Share on other sites More sharing options...
tonyjuliano Posted May 6, 2021 Share Posted May 6, 2021 That’s not “biofilm”, it’s fungus. Remove it, and you will be fine. if you don’t and conditions are right, it will multiply and become a big headache. Link to comment Share on other sites More sharing options...
Kauaidoug Posted May 6, 2021 Author Share Posted May 6, 2021 Ok. Thank you! Better safe than sorry, although, I have one platy that stands on it's head to eat it. And it's still alive thank goodness Link to comment Share on other sites More sharing options...
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