for me, I would suggest to keep your hands off your tank and just enjoy it. If you had not added stuff to your tank, this would not have happened. If you go through the forums, you will see the trend, the majority of tank problems are related to overdosing something.
If the fish have a fungus, then should deal with the fungus, not dose the entire tank.
Even reading the OP you added flux, fraction, too much RO, then you "brought up" alk and mag, I presume with 2 different kinds of chemicals. Its way too much, its not the right way for a 2 month old tank.
I understand from your post you don't even have a rodi unit and still rely on outside water sources. Your priority is incorrect, rodi is one of the most important things you can have, while dosing is just the fad of today.
It is too many losses in only 2 months,you need to slow down, let the tank mature and settle itself, do more research, get better equipment (rodi!), get more experience.
I have RO with a TDS of 0 checked with a digital reader. I don’t really understand how to check if it’s DI but I was under the impression what I was using was okay. I do just want to say I would not have stocked a new tank like that if it wasn’t what was already in my old tank which I kept with no deaths for just under a year. I was told a larger tank was easier to manage which I’m not finding to be true!! I’ve NEVER dosed anything before ever. I used reef flux once in the nano it worked fine with no side effects.for me, I would suggest to keep your hands off your tank and just enjoy it. If you had not added stuff to your tank, this would not have happened. If you go through the forums, you will see the trend, the majority of tank problems are related to overdosing something.
If the fish have a fungus, then should deal with the fungus, not dose the entire tank.
Even reading the OP you added flux, fraction, too much RO, then you "brought up" alk and mag, I presume with 2 different kinds of chemicals. Its way too much, its not the right way for a 2 month old tank.
I understand from your post you don't even have a rodi unit and still rely on outside water sources. Your priority is incorrect, rodi is one of the most important things you can have, while dosing is just the fad of today.
It is too many losses in only 2 months,you need to slow down, let the tank mature and settle itself, do more research, get better equipment (rodi!), get more experience
I totally agree with you though I’ve screwed up really badly, I’m just trying to learn from it and manage and save what I can from this terrible situation I’ve landed myself in.