Thanks! I haven't bought any of the fish yet. I'm still settling on the list. I've had pajama cardinals in the past without issue as a pair. Are banghai's different? Maybe I just got lucky before since they became a mated pair.The tank looks like it is coming together quite nicely. Have you gotten that list of fish yet? The only reason I am asking is because you may want to reconsider buying a pair of bengaii cardinalfish. They are beautiful fish and I bought 2 of them a couple of months ago and they got along ok for the first couple of weeks. After that, one of the bangaiis started bullying the other one. Shortly after, my bigger clown started to bully the same fish. Next thing you know, I only have one bangaii cardinalfish. I would suggest buying 1 or 3. I could be mistaken and it all may work out for your tank though, just throwing in my experience.