On a 48" tank, should I get 48" or 36" T5 lights?

I’m planning to replace the two MH lights I have with T5 lights to save on electricity & heat. So I want to get a 4 bulb retro T5 kit and attach to the inside of my canopy. But I’m uncertain if I should get 48" or 36" lights. My tank is ~110g (48w, 24h, 21d) . One reason I’m...

ati bubble master 160 broken collection cup

hello every one i need help, ive purchased a bubble master 160 and my wife dropped the collection cup and the inside bit has broken off , does anyone know were i can purchase a new collection cup ,. i have siliconed it back together but not sure how long it will hold… The rest is here: ati bubble...