So, i do a 7% water change, and put in another does of meds, as a dose every 3 days is recommended.
I move a plant around as well, stirring up a lot of much and uneaten food - they've been off thier food lately, and the bristlenose is being really picky. I thinking of getting rid of him in favour of two corys, as at least they will eat uneaten food, and I can scrape algae off the tank.

This morn two more tetras are dead, but this time I'd say it's cause of the ammonia spike from distrubing all that muck.