sump help

[rob_stl_mo]

With the package deal I purchased I received a 20 gal sump for my 75 gal tank. After looking at a lot of these sumps online I feel it isn't sufficient. There's two dividers, one is notched on top. To help with particles, bubbles, etc. Searching craigslist I found a 40 gal breeder sump. Has a lot more dividers/baffles in it. Basically brand new for $50. Said he didn't like the way it fit his stand. Opinions?

 

[mr_X]

What are you asking? A 40 gallon breeder will not fit inside an average 75 gallon tank stand. It's the same width front to back as the 75 gallon tank itself.
If the 20 gallon sump you already have fits everything you want in it, then it's sufficient.

 

[rob_stl_mo]

I figured the more water flow the better. The stand is custom. Didn't think it was the same width. Still new to this

 

[bjj_junkie]

More flow through the sump isn't necessarily good. You don't want the water to fly through the refugium. I have a 20gl sump for my 60 and I think it's more than enough. I recently made a build thread with pictures if you wanna check it out. I think it's perfect cause it fits the stand nice and leaves plenty of room to work around.

 

[mr_X]

I figured the more water flow the better. The stand is custom. Didn't think it was the same width. Still new to this

Then measure the stand inside and the opening you are going to use to install the sump and figure from there. If you are unsure, you can simply google "40 gallon breeder tank dimensions" or whatever size tank you are considering.
The more water volume the better, but flow is controlled by your return pump. This can be changed without changing the sump.
You have to figure out exactly what you want to put in your sump, figure the space you have to put the sump, and then choose your sump to accommodate.