Picked up this 15g aquarium yesterday (placement is temporary). It is 13" x 13" x 19.5" tall (to water level), and I can use some help figuring out a low-tech lighting.
I do not want to add C02. I do have Metricide 14, so I can/will use that.
IF I replace the current T5 8w light (no reflector) without modifying the top...then I have about 12" x 4 5/8" space to work with....
However, I have the 5.5" version of this:
Zoo Med Deluxe Porcelain Clamp Lamp
and a 4" hole saw....so, removing the current lighting, drilling a 4" hole and just using a spiral CFL IS
a distinct possibility. And, is what I may very well do.
However, I am wide-open to suggestions of an LED that would suit this tank/setup well.
My real concern comes in with the depth. I do not want to battle GSA, GDA, etc while trying to get enough lighting to the bottom of the tank. I am not sure right now what I am going to do about aquascaping it, but I figure (right now) that I will probably slope it up high into the back left corner...low to the front right corner.
For the clamp lamp I have a 10w spiral CFL:
And a 26w spiral CFL:
I can buy 13w and probably 15w spiral CFL bulbs (6500-6700K), so the versatility of switching bulbs to find the "right lighting" is available. That's a big plus for me.
Clamp lamp appearance, plus T5 8w lighting:
However, again, I am open to a suitable LED light.
I am looking for low tech. Infrequent dosing...like 1-2x/wk, WCs 1x/month...even less would be good, but I think a critter load is going to forbid that.