First off the bala shark, and Pictus catfish are a definate no. They can get pretty big, and those tetras would eventually become an easy meal. I have 2 pairs of Kribensis. Both of which have corys and plecos in their tanks, so i don't see a prob their. The Kribensis seem to stay mainly towards the bottom(besides when eating) so you don't really want to many fish that live in the lower levels(like the ,corys, and pleco) because the Kribs will avidly defend their territory. So having to many bottom dwelling fish could result in conflict. Now that's just my opinion from my past experiences with kribensis. My kribs aren't really agressive, but they can't stand a bottom-dwelling fish(in my case corys and Pleco) in their little territory. They chase it out faster than it came in, but once my kribs leave the little area around their cave it's as if the cory, and pleco don't even exist, So as long as u don't over due it on the bottow dwellers, no prob. I'm really not to sure about the neons because they are such small tetras they may be stressed by the agression of the kribs. If u get the kribs when they are pretty small u might be able to pull it off if you add them all at once. I have a few Lemon tetras and a few ottos in with my kribs and they're both pretty small. I don't see a prob with the Black Phantom Tetra as they're about the size of my lemons. Why don't u look into some Congo Tetras. They are some larger tetras and would do well with the kribs.
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