Hi all! I am fairly new to this hobby. Today I purchased the Tubro Twist 3x 9 watt UV sterilizer. My pump to the return is 3/4'' and the largest barb that came with it is 1/2'' so I reduced the hose down. Now my flow is slower than usual. Will this be a problem? Should I get a larger sterilizer...

I am selling off some stuff that I do not need, and want out of my place. All prices are OBO + shipping, and my photobucket album link is here for more pics. Located in 14467 (Henrietta, NY), and willing to do local meet. 1. SeaLife Systems Proseries 75 Sump Sold - Asking $65 - Purchased...

I bought a used Coralife Turbo-Twist off a person and when I open it up this is what I found all over the glass tube. It's like a egg shell covered over the glass. It's chip off so easy but I was wondering what was this stuff that I found in this Turbo-Twist. Can any of you ID this? <input...