sump size?

[evil Nick]

I plan on doing my conversion to a 20 gallon long for my reef soon. The 29 is just not working and the algae just cant be stopped. Im going to try from scratch with a smaller footprint and a sump.

What a decent size sump to build for a 20 long? I cant go to huge,I was hoping 10 or even a 5 I have lying around would be sufficient.

If thats not worth it then Ill prob just drop reef all together, call it a wash and sell off my stuff.

 

[melosu58]

Added water volume is always a good thing. I have no problem with the 10. The only issue is you wont be able to put much fish in the 20. Your choices will be limited.

 

[evil Nick]

My choices are limited now. My only fish would be what I have. 2 small clowns, orchid Dotty and a gold chromis. I have a cardinal I'll prob dump. Im looking for it to be mostly Coral and inverts now.

I'd reduce my rock load in the main tank for extra swim space as well.