What can i put on this empty space on my diy sump?

[Drips702]

I tried to draw a water lines and media and return pump but ad you can see i have alot of empty space. Any ideas on what I can use it for?

 

[dr exum]

plants, there are those bio media sticks , bio rings , course pond filter material , more fish, carbon in bags, lava rock, sponge filters, uv filter,

GL!

 

[twentyleagues]

plants, there are those bio media sticks , bio rings , course pond filter material , more fish, carbon in bags, lava rock, sponge filters, uv filter,

GL!

Agreed. More media would be what I'd do. Or some other type of filtration, maybe something to help remove nitrate.

 

[tlindsey]

plants, there are those bio media sticks , bio rings , course pond filter material , more fish, carbon in bags, lava rock, sponge filters, uv filter,

GL!

What dr exum stated plus a heater if you wanted too.

 

[Drips702]

I wanted to put maybe like a plant pot and fill it with plants. I want to put media i just wanted to make sure it would work since the water would channel above them, or at least thats what I thought would happen. I was also thinking that algea scrapper thing.

 

[TheWolfman]

Fish, it’s nice to have the extra space in the sump should you need it.

 

[duanes]

This is what fills some empty space in my sump, an umbrella palm (papyrus plant) that sucks up nitrate like a sponge.

But as everyone else suggested, your options are only limited if you let them be.
Beside heaters, and other paraphernalia you might not want to see in the main tank, extra space allows you to add media in mesh bags as fish outgrow the amount of bio-media initially provided, or other filtration techniques that become available or as your filtration expertise evolves such as fluidized beds, or fractionation, or bio- or calciums reactors, or refugiums.