I can appreciate that you are in a different spot right now -- this being a new system and all -- but I wanted you to hear the method that @jda and many others follow. At least for the long run. In a system your size, it just seems to limit the feasibility of (post infection) intervention. Qting fish before they go in is easy peasy and appropriate. Monster UV equally easy and appropriate. Fat fish. The diverse microbiome takes a little more time though.I am fore sure no expert here but I have to ask. Sometime I see people refer to a fishes immune system when talking about success with Ick or Velvet. I really do not see the connection. Ick and velvet are parasite just like a tick or flea would be to a mammal I believe maybe this is where I an wrong and would like to better understand. So if you put a mammal say dog , cat or person in a room with ticks or fleas the parasite attaches to the mammal gets nutrients reproduces and then the offspring attack the mammal. If I have a good immune system the parasites are still going to attack me and slowly bring me down and I do not believe that my immune system has anything to do with it. The Immune system I understand helps fight bacteria and virus that are inside of the body.
If anybody smarter than me can help me understand this please explain
So my real question is does a fishes immune system really have anything to do with surviving Ick?
Whatever you decide, no judgement here. Just trying to give you some diverse perspectives/alternatives. (And therefor confuse the p**p out of you.)
Hang in there.