loc-line

So I picked up one of these random flow generators from Vivid Creative Aquatics, and the slip fit adapter is just a bit too small for my outlet. Taking the existing plumbing there I'm measuring about 20.9 - 21 mm (13/16 in ) in diameter on the inner slip fit that came installed with the tank...

I have an almost 10 year old JBJ Nanocube 28 and a couple of parts are broken/gone bad. I don't know what sizes the items in question are to replace them with standard parts. One of the hood fans is shot and one of the return nozzles is broken and in the garbage now as well. JBJ sells...

I'm "upgrading" my all in one into a more traditional tank with a sump, the tank is 30 gallons with about 10-15 gallons in the sump. I am planning on using doc-line for the return, but i'm not sure if I should go with the 1/2" or 3/4". Looking at the kits on glass-holes.com the 1/2" is up to...