[Siamese Fighting Spectre]

Hello everyone! I'm Austin, a just-recently betta fish owner! His name is Ghost, and is a double-tailed betta. I have a question regarding my biology class, and I figured this is a good place to ask. Now, I need to record its respiration daily, meaning I have to see how much my fish breathes per minute. Its hard to record that when I can't catch my fish breathing, or I just can't see it. I need this answer pretty soon, so help would be appreciated at any time. Thanks!

 

[Tealight03]

You could definitely record how many surface breaths he takes. You might be able to record how many times his gills move but it would be more difficult I imagine.