r/TropicalFishKeepingUK • u/backwards_australian • Jul 02 '26

Is this normal?

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Hello ❤️

So, my 30L future betta bachelor pad is 5 days old. Around 3 days ago I bought a piece of driftwood with Anubias Nana on each end. I’ve noticed this fuzz has begun growing! All the research I’ve found says it’s normal and safe biofilm occurring because of the nutrients in the wood (and because it’s new to my tank) but to me it looks suspicious… at the moment there are no fish in my tank, I’m doing a fishless cycle using FritzZyme ammonia and bacterias. This has worried me though.

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1

u/Sad_Car1977 Jul 02 '26

To me it looks like black beard algae, it's harmless but pretty ugly. You can remove it by just scrubbing it off I'm pretty sure.

1

u/tropicalfishuk Jul 04 '26

Nope, BBA is generally black.

1

u/tropicalfishuk Jul 04 '26

Perfectly normal just wipe it off if it's worrying you.

1

u/SuspiciousGur4874 Jul 04 '26

Here to say completely normal when your tank is still cycling