Is it still unknown why some btas have bubbles and some dont?

[10" Red Devil]

Just wondering if it is still primarily unknown why some btas or rbtas have the bubbles and some do not? Or some have both?

TIA.

 

[cmcgehee01]

My RBTA went for a year with no bubbles, then one day it had bubbles and has ever since for the past 6 months.

 

[SEAFLOWERS]

I have read nothing to date that states why some do and some don't, sometime in the future I'm willing to bet the reason why will be discovered.

 

[traveller7]

A good read on the topic:

http://www.advancedaquarist.com/issues/nov2002/feature.htm

 

[TOURKID]

mine had bubbles when i bought it... my maroon dove right in and i never saw a bubble agian..... until... i took the maroon out... within 3 hours she was completly bubbled agian..... bet that doesnt help lol

 

[rrome]

That was a great article, thanks Scott