Mold/White Algae on Driftwood?

The is very common on all pieces of driftwood when they are first added into an aquarium. It’s more common on those that have some sap still on the wood since the added sugar creates this appearance (but even thicker).

It’s perfectly healthy and normal, and many fish and invertebrates will actually love this as a food source and keep it in check. After about 2-3 weeks of this appearing it will disappear on its own as the wood has leeched out all of the extra nutrients that allows for this to grow.

If it’s something that you can’t stand to see, I’d just recommend to use a rag and wipe the wood down and then put it back into the water.

Sweet thank you! Not sure why every single place said something totally different, or was noted it could be due to sap leaking from the wood or other bad things.

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I had that in my tank at its early stages before adding my fishes to it and they really enjoyed it as a source of food for themselves. It wasn't harmful at all to them.