Remove the grammy for a day or two (if possible) and rearrange all the scaping. leave the new dithers in there. I recommend small convicts (male) and silver dollars. Throw him back in a few days.
This will give the grammy less to get worked up about. I do it all the time when introducing milder fish to a very dominant fish.
This will give the grammy less to get worked up about. I do it all the time when introducing milder fish to a very dominant fish.
One of them didn't survive. The best dither for Grammodes IMO are Filament Barbs. They're similar to Tinfoil barbs but only get 5-6" max size and are very very quick when they need to be.