30 days of copper going to kill a lot of fish and totally not necessary. Ask yourself how many fish you and others killed in quarantine.
How do you quarantine your inverts? Again, there is no way to irradicate ich in a system. They will always present. Keep your fish well fed and don't stress your system. There will be no ich.
you QT inverts by going fallow in a fishless frag tank. Not everyone does it but if more people did we would get less posts about aipastia and bryopsis too.
If you step into the disease forum there are tons did sick and dying fish and they are not in QT but in someones display.
Ich is generally not the end of the world. I agree. But we can’t say just keep your fish low stress and feed them well in a majorly overstocked 13g. The tank looks cloudy and not overly healthy. Doesn’t even look like there is proper sleeping or hiding spots for the amount of fish. So it’s just kinda crappy advice to say just keep low stress when it already isn’t being done.
Whatever upgrade he is getting needs to happen today as it’s going to take enough time to get up and running. He would be better off just buying a 180g and skipping the 55g as might as well buy once.