overflow

Just a heads up it's a long post. You have been warned. It's been a while since I last posted on here or even got on at all let alone started a new fish tank. Been about 1 1/2 years since I last posted and in that time I had my 220 gallon reef tank which was a great success but ultimately I made...

Hey, I've had a fish in a bowl for a year or so. Male betta, hardy little bastard. About a month ago I set up at 25gal tank and he's been doing pretty good with the cycle. I'm to the point where I'm waiting for the bacteria that breaks down nitrites to do its job, but its taking a bit longer...

I'm trying to redesign the overflow system on my aquarium and am failing miserably.  I need some help.     DIY PVC overflows don't work (well, at least not at any decent flow rate), so I built an HOB overflow box, which has so far been working great:  I pump water in, it overflows out, and the...