Please see the attached 3 pix (large - 1MB each).
I have 3 angels. I used to have 5 but returned 2 due to overcrowding. You can see the current tank setup by my sig below. Water parameters are ph 8, ammonia 0, nitrite 0, but nitrate recently has been spiking and was at 20 (about a week ago) but is now at 80. I do a 10% PWC every week but will be doing now a 10% PWC every day until I get NO2 down to 10-20 again.
The angels have been together for 3 months. There is one that is a bully so I am not sure whether the fins have been attacked by the bully or whether it is fin-rot.
In addition to the PWC, I am adding in 1tsp/G of salt (tank is currently salt free) on the first PWC today.
Should I add in some anti-parasite tablets or any meds at the same time? Or should I wait to 1-2 days to see what happens?
Thanks!

I have 3 angels. I used to have 5 but returned 2 due to overcrowding. You can see the current tank setup by my sig below. Water parameters are ph 8, ammonia 0, nitrite 0, but nitrate recently has been spiking and was at 20 (about a week ago) but is now at 80. I do a 10% PWC every week but will be doing now a 10% PWC every day until I get NO2 down to 10-20 again.
The angels have been together for 3 months. There is one that is a bully so I am not sure whether the fins have been attacked by the bully or whether it is fin-rot.
In addition to the PWC, I am adding in 1tsp/G of salt (tank is currently salt free) on the first PWC today.
Should I add in some anti-parasite tablets or any meds at the same time? Or should I wait to 1-2 days to see what happens?
Thanks!
