I've been using a Hagen glo 2 x 54w light over this tank the bulbs both giesemann one tropic the other flora something and I'm getting ok growth I'd like something a little stronger
Originally Posted by Seattle_Aquarist
If you are looking for just medium to medium-low light a single fixture may do the job. I tested my Fluval 2.0 (previous version) on my 75 gallon tank (48"X18.5"X21.25H) with 2" - 3" of substrate and reported the results in this post
. Obviously the extra 3" in the height of your tank will cause lower readings. Hope this helps!
I read your thread. Very helpful thank you. For my current setup according to your measurements one fixture should be sufficient. To bad it doesn't have a little more power. Down the road of I keep.more demanding plants in this tank I'm afraid the one fixture wont be enough.