lighting units T8 - T5

[morf]

I have a juwel tank which comes with a T8 lighting unit

I hear you can replace this with the acadia T5 units

anyone done so and f so is there much difference?

are there many T5 light tube types?

[chimera]

T5 lamps are slightly shorter than T8 lamps and therefore cannot be used as replacements for the larger lamps. Some luminaires, however, can be made to accept either T5 or T8 lamps by changing the sockets and ballasts

but thats only going by this web site:

http://www.lrc.rpi.edu/programs/nlpip/lightingAnswers/lat5/pc1.asp

(also see page 3 of this site, "Can a T5 lamp replace a T12 or T8 lamp?")

if not, it's an incredibly good (technical) read at least

[morf]

cool

thanks