White scales behind beard?

[Jdh]

Hi all,
my Veiltail recently (overnight) has his regular black scales turn white behind his flaring gills/beard. Does anyone know what this is? Could this be due to stress? I recently put a new filter in, as well as an airater. He's in a 10 gallon with Guppies and Otos. (He isn't fighting with any of them.)

Thanks,
-Josh

[JKfish]

hmm. It could be that he's just marbling. Make sure the filter isn't too strong, and that the airator isn't too bubbly. Bettas like nice calm waters.

[Adastra]

If you just put in a new filter, you might be having water quality issues--did you transfer the old filter media to the new filter in order to preserve the bacterial colony?

[Jdh]

@Adastra Unfortunately, no. But the tank was fairly new anyway (~2 weeks). Should I add some Dr. Tim's do preserve it?

[Ajones108]

Adding Dr. Tim's won't hurt. It can only help and says specifically on the bottle that it's impossible to overdose it.

[bettafish17]

coulbe really weird ick...prbly not