Thanks for the response djay.

Your math is as bad as mine LOL! 12+8=20

Thanks again man.





"Djay" wrote in
:

That's only 18 hours in your day.

Usually recommend 10-12 hours per day.

HTH,

DJay


"Aku, Shapeshifting Master Of Darkness" wrote in
message ...
This is a topic i've never seen come up, but I'm sure it has at some
point.
I'm leaving my 160w (4 40w bulbs) on for 12 hrs a day off for eight
or so over a 55 gallon. Is this too little or too much? Can anyone
elaborate on this? Plants right now are crypts, Spirella, a melon
sword and a bunch of java fern.