Hi Fishorama! Thanks so much for your post!
The roots on one plant are about 2 in. long. The roots on the other a little shorter. I will play around with it and see what looks best. Like you suggested, I'll likely have some leaves out the heart, and others out the top. The roots I should be able to tuck under the ornament. Yesterday, I didn't spend a lot of time on it, just tried to stuff everything in the new ornament, with as many leaves visible as possible. The small hole on the new ornament doesn't go all the way through. It is filled in on the inside.
The person at Petsmart also mentioned the rhizome. How important it is to make sure it is out of the gravel. She said that some people bury the roots, while others just let the plants float free. My plants were floating for 2 days. It looked horrible, IMO!
I have been off work all week, so I have had lots of time to watch St. Vincent. She checked out her pineapple house only once that I know of. She very slowly entered it, then after a bit emerged from the other end. The plants she checked out a couple of times. She really doesn't seem that interested in plants nor ornaments. She spends most of her day swimming at the back of her tank, from one end to the other. She also doesn't act like she is starving to death every 2 minutes! lol Most of the other bettas I've had spent the better part of their day in their house, or they were bugging me for food. lol...Not her! One meal a day and lots of swimming space is all she wants it seems! She's a real sweetie!