Small tanks heat up fast

Well, the first challenge has been set… me vs. a rampant heat issue.  It’s warming up here in San Diego and Summer has just started.  With a 150w Metal Halide sitting about 4 inches above the water line it’s like being on the sun!  I found that AZOO makes these little clip-on type fans which really help.  They dropped the temp 6°F.  At only $20 bucks it beats buying a chiller!  Let’s just hope they can keep up as it heats up.