series

Hi all, I'm having an issue with water flow in these tanks. I have another system that is exactly the same that works great, but was built by someone else. I'm not sure what I'm doing wrong. Basically, there's filtration on the bottom, first through filter socks and then through bioballs. The...

I recently picked up a 90 Gallon Long (6') AGA tank from craigslist and I've started planning a hood and lighting for it. Originally, I was going to stagger 4' bulbs to try and get as much lighting as possible without either end of the tank being too dim, and ODing each pair of bulbs by using a...