info from marine depot on the catalina goby:
"This brilliant red and blue beauty is from off the two California's Pacific coasts. It is not tropical, and will only live a short while in water in the upper seventies, eighties. It should not be sold as a warm-water organism. Why do I, should I mention this? It is an embarrassing sham in the trade, and a waste of resources. Endemic to Catalina Island, this brightly coloured fish is suitable for cooler aquariums (22-23 C). Intolerant to its own kind, Catalina Gobies do best in invertebrate set ups with lots of rockwork for nest building. Keep water quality high (SG 1.020 - 1.025, pH 8.1 - 8.4, Temp. 72 - 78° F).
from clemson university: "This is a catalina goby, a beautiful peaceful fish. However, they require temperatures consistently in the low 60's to thrive."
from animal world.com: " A cold water marine aquarium is ideal as these are not a "tropical" fish. They are "coldwater" fish, which means they will thrive best in temperatures in the 50°s and 60°s F (with the highest temperatures being 74° F)."
all of the references i was able to find agreed that the catalina was cooler aquariums only, and most recommeneded that the ambient temp be well under 74...
ruh-roh... 8O