Originally Posted by
120reefer
Right, doesn't even have to be glass.... you probably have a plastic hood with the light over it right? Although you get good circulation in the tank.. with the hood over top, its preventing O2 exchange. An easy fix if you can't hang your lights... just pop the hinged lids out...
Also, smart idea on getting the Ca and ald tests
this may be the answer, I too just set up a tank 2 months ago and have a glass canopy and my lfs tested my ph and it is way low...he suggested getting some ph up and only add a drop, wait a day and retest...they said the fish are very sensetive to ph so add very very slowly. I'm gonna get a test kit today and remove the canopy because my light sits about 3 inches off the top of the tank i'll let u know my results in a day or so