I dont have any experience with any, but the
MH fixture will definitley cost much more. There is Aquapod nanos with
HQI options and they cost twice as much as the
PC versions. But theses have an open top and the fixture has legs to set over the aquarium just like fixtures for large tanks. There might be some advantages such as limited heat buildup and better gas exchange with the open top. But also maybe increaded evaporation and if you have any jumpers...
