So what all do I need to do to make sure this NEVER happens again? I've been looking at RC51's aeration setup. Is that a good start? Would surface aerator be better in the long run instead? How much vegetation should I put in? How long does a fish kill usually last? What are the odds of survival for different species?

Do you guys think the little air pump and hose is doing any good at this point or is it a lost cause and I just need to start putting more concentration on how to prevent this in the future?

I just came back in from picking up more fish... More CC, LMB, BG, HBG, BH and even more WCP.