I'm going to buy a new tank this week, probibly a 70-80G tank and am wondering about what filtration would be best?

At the mo my goldies are in an 40G tank with a fluval 404 and a fluval 4. Obviously with a bigger tank im gona need more filtration. My original idea was to get another 404 and run them together.

Then I started having a look around and came accross the idea of a wet/dry sump fiter. I have the room available under the tank for a 15G tank that I thought I could use as a sump.

So now im not sure, which would give better results? Which would be easier to clean? I know that the sump idea will be more difficult due to having to drill the tank but I dont really mind that, I'm just not sure which would give better results?

Sorry to jump in( and off topic) but what is a sump filter???

I got most of my info from

http://www.csd.net/~cgadd/aqua/wetdry.htm

Hope this help

http://www.aquarticles.com/articles/manage...ump_Filter.html

I like to use the sump too.