i just bought a used odyssea fixture that has 2 150w mh and 4 t5's. The bulbs in it seem larger than my other 150 coralife bulb. Does anyone know anything about this. How do odyssea bulbs compare to others like xm or hamilton or coralvue? Also I need new ballast i seen a electronic ballast on ballastwis.com ($50) are these pretty much universal?
Thank you in advance