Thanks, love to hear from another rare cat enthusiast. The H. olyroides is a very cool fish but easily the most timid cat in the tank. He will come out and eat pellets with the light on so I still see him but other then that he just chills in his cave. The best trick for cats like this is to set up caves so they feel secure but you can still see them pretty well. The Platysilurus is out and about pretty much all the time and is an amazing fish to to observe, he is 5"-6" now with 12"-13" barbels. I am very sad my Wertheimeria Maculata didn't make it he was so cool. Hopefully I can find another one at some point.
Can't wait to see what cats you get for your 75, good luck