This is a list of some of my favorite hearty fish for beginners. Whether you're just starting or have been in the hobby for a while I think these are always great for reef tanks.
Royal Gramma (Gramma loreto)
Red or Purple Firefish (Nemateleotris decora, Nemateleotris magnifica)
Lawnmower Blenny (Salarias fasciatus)
Bicolor Blenny (Ecsenius bicolor)
Ocellaris/Percula Clownfish (Amphripion Percula/Ocellaris)
Talbot's damsel (Chrysiptera talboti)
Yellowtail Blue Damsel (Chrysiptera parasema)
Purple Stripe Dottyback (Pictichromis diadema)
Yellow Watchman Shrimpgoby (Cryptocentrus cinctus)
Red Cap Goby (Elacatinus puncticulatus)
Saltwater Molly (Poecilia latipinna)
This obviously isn't all of them but I feel like most of these are great for first saltwater fish owners.
Royal Gramma (Gramma loreto)
Red or Purple Firefish (Nemateleotris decora, Nemateleotris magnifica)
Lawnmower Blenny (Salarias fasciatus)
Bicolor Blenny (Ecsenius bicolor)
Ocellaris/Percula Clownfish (Amphripion Percula/Ocellaris)
Talbot's damsel (Chrysiptera talboti)
Yellowtail Blue Damsel (Chrysiptera parasema)
Purple Stripe Dottyback (Pictichromis diadema)
Yellow Watchman Shrimpgoby (Cryptocentrus cinctus)
Red Cap Goby (Elacatinus puncticulatus)
Saltwater Molly (Poecilia latipinna)
This obviously isn't all of them but I feel like most of these are great for first saltwater fish owners.
