Yikes! I always forget your "killer" festivums. Do they fight with each other or just kill small tankmates? You may have said...
I'm glad you clown loaches aren't too active for your little BGK...& also that they hang at "your end" of the tank. Last time I had clowns they liked "my end" of the tank too. Not just waiting for food either, the "best cave" was there...& me, lol...& my computer screen, they seemed to really like sites with blue backgrounds like LOL & AC of old. (sigh) I miss my clowns & other botia types.
That's cool you were able to get a tank bred BG knife! Do you have a link or 2 on how they're bred? Or even sexed? I did a quick google but didn't find any info like that.