Ink the 2nd
New member
I was testing out the use of a florescent shop light on my big fish tank and as soon as I turned it on my 16" arowana sank to the bottom and laid on its side like it was in shock. The shop light had two 25W white lights but I generally run two aquarium light fixtures of 20W & a 15W blue lights. I watched him for a few minutes with the shop light and he just acted strange so I put the original lights back on and he popped right back into gear and is acting normal like always. was it the extra 15 watts that stunned him or the type of lighting?