Would it be ok to add 3 fish at once? I royal gramma, purple fire fish and a yellow watchman goby. I already have a flame angel and 2 clown fish in a 60 gallon tank with 83 pd of LR. Everything is fine and the nitrates are at zero.
I have found through experience that if you slowly increase the feedings of the display tank while the fish are in quaranteen the biological filtration will be primed & ready for the extra bioload by the time you add the fish. The key word is slowly.
I think all of that is ok. It would be better to slowly do stuff like this of course. You can slowly add more food over time, control feedings by only releasing a little frozen food at a time so there's not a lot of waste floating around and so the fish actually get most of the food, etc... without spiking the water. I'd be just as worried about how all these guys will get along as you are worried about water quality. If you can add them slowly with the more aggressive put in last. Put them in at night with the lights out. Stuff like that will ease the stress that will be caused by adding all these things.
