Hi wondering if I can get some advice on getting new lights for my aquarium the ones I have replaced the originals with are slightly smaller in width but the right length, the rubber end caps go on easily to the new ones but were tight on the old ones. How much of a issue is this? Having trouble locating the original make that was in the aquarium when I brought it. Just thinking elec and water don't mix, where I brought the lights did not advise the widths may be different and I have not been at this long enough to know any better.
Cheyenne