Cheers, emc7!
I DID just do a small H2O change. Thanks for the trouble-shooting!
Went and took Chamilla (el prego) to the shop with me and they said she's only a LITTLE round in her belly. May be pregnant, may be fat. Either way, they're saying she won't be popping for another few weeks if she's pregnant.
I took your advice, emc7 and threw some random, leafy plants (artificial) to float around in the mellowest side of the tank. That's a MUCH cheaper option and I'm happy with that.
Again, I want to thank you guys for the help/advice/information!!!
I couldn't be more grateful! I'm really glad I found this site.
Happy weekend!