Originally Posted by SMoney
I thin they are like 74-78 degrees, I always kept my tank at 78 and still do.
if you search site that really "care" more than just making a sale readily admitt they will only survive a short while in temps of 74-78. they prefer temps lower than 74 deg.
from a site that sells them
This fish is for cold water tanks only and will NOT live in water temperatures higher than 74 degrees sucessfully; do not attempt to keep this fish unless you can keep the water cool. Lythrypnus dalli (Gilbert 1860), The Blue-Banded or 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.
futhermore I would not take the doctors site recommendations as face value as they undersize their recommendations for nearly every medium to large fish.
that goes for this site too. for example they have the gold rim/white cheek tangs (Acanthurus nigricans) care as "easy" even though every other reputable source on the planet has them as difficult and almost never surviving in captivity for any length of time. if you arent a hundred percent sure you must research multiple sources to come to any definitive conclusion.
