I'd recommend at least 25% water changes/week. That is a big bioload.

Ya. I guess I have to buy a new bucket for them, so can probably do at least 50% weekly for a few weeks.

I have a picture in my mind of a bunch of fish all squished against the glass with fins and things sticking out fo the top of the tank .As for whaterchanges i would just regularily test nitrates and do waterchanges acordingly to keep them at a level you deem aceptable .The thing that would worry me with that many fish would be O2 saturation , but you must be running a good skimmer so it should be ok. +1 on a picture , bet it looks awsome.

He states in the opening that he has no skimmer on this tank.

Time to pull out Mount Wannahockaloogie and crank open that air valve Brad :lol:.

hmm missed the no skimmer part.

I'll add a Tunze stream aimed across the surface for air exchange. If I need to, I can pull out a larger tank or do more water changes. Aggression is a top concern as well.
The plan is to treat all fish in this tank for 3 weeks until I can start re-adding to the main tank again, last week of april

They are making fun of you...don't worry their day will come. It is ah... called "Karma"
As for your problem I would start praying to the fish gods.
And +1 on testing.

I thought it was Carma??

Ya, praying to the FG is good advice :)

K...C... Tomatato Potatataoto

Spelling is my Specaiality :razz:.

25%-50% every week with lots of feeding should keep everyone happy.