filtration

hey guys, I am starting a 250 gal soon but i am having troubles with filter choices. I am currently hesitating between a fluval fx6 with a fluval 307 vs two sunsun hw 5000s, because while the sunsuns would perform better on paper i havent had any experience with the brand and fluval has a good...

If you have an overstocked aquarium would adding extra filtration compensate for overstocking? As long as the fish don't seem stressed from overstocking? I have fancy goldfish, dojo loaches and cory cats in my tank. According to aqadvisor.com my 75g stocking level is at 135% and recommends 50%...

so i have a challenge for the more creative people on this site. I want to link the water of my main tank (40g breeder) to a small 5 gallon fluval tank i'm not currently using. I have a sump filtration system for the 40g and plenty of room to spare for pumps and returns of necessary. I want to...

I got a new tank recently and it came with a sump which I have pretty much no clue about. It seems to be two parts an upright part that connects to the overflow that has two chambers and a drip plate at the bottom then another box that sits like most of the ones I've seen with two chambers so I...