I've decided against the Leopard Ctenopoma. Upside-down Catfish will be the last oddball addition. Here's a pic, looks empty right now but I'm trying to imagine fish adult size.
I finally got the nerve to transplant the Amazon Sword from the 29g to the 75g. it had gotten so big and I was amazed at the root system. Once I started I couldn't stop. A couple of Crypts were tangled up so I moved them too. Here's the most recent pic . . .
I yanked all of the Bacopa out yesterday; the tetras were picking it apart. I replaced it with another sword from my 29g leaving 1. I ordered the upside-down catfish and should be in Friday. Still not done . . . planning to add driftwood; considering some kind of effect, a bubbler and/or underwater LED.