First fish

[Beverly]

Originally Posted by apepper

Percula Clown(s) (Amphiprion percula)
Lawnmower Blenny (Salarias fasciatus)
Six Line Wrasse (Pseudocheilinus hexataenia)
Green Chromis (Chromis viridis)

Clowns are great and would be fine in your tank, imo. Same with the six line wrasse. Be careful to cover the entire top of your tank with glass and/or eggcrate because wrasses are known jumpers.

Lawnmower blennies eat filamentous algae. Unless you have a lot of this in your tank, your blenny may starve. I have no experience with this fish, however. Maybe there are alternative foods it will eat. Hopefully, someone will chime in here...

Green chromis are schooling fish. I bought one as a test fish for some bugs we found in one of our tanks, to see if the bugs were parasitic. Turns out the bugs were good bugs, and the chromis is in our 42g hex along with a pair each of ocellaris and skunk clowns, and two gobies. The chromis really wants to school with the ocellaris, but they aren't very interested in the chromis I'd put more chromis in my 42g, but the tank stocked to capacity imo already.

Instead of the chromis and blenny, I'd probably see what kind of gobies were locally available. I have a yellow clown goby that stays under 1.5" and is cute as a button. Firefish are also quite striking, especially the purple ones.