I had a power outage and it fried my computer. I'm touch and go for while. This laptop sucks.
The hi fin and yellow clown will do fine if you want to keep fish with you horses... well they typically do fine. There is no guarantee. Some horses tolerate tankmates well, some react poorly. There is also the risk of introducing disease. My friend introduced a yellow clown and all specimens in the tank died with aeromonas. Make sure either fish are as big as they can be... they have been known to try and snick small fish... sometimes damaging their snout.
The catalina goby is an inappropriate addition to any warm water tank. I know they are often available at the
LFS sharing the tanks with the warmer species, but come dip your toe in the pacific here where I live on the shores across from Catalina Island.... it really REALLY cold.