Sump size for 180

  • We are currently upgrading MFK. thanks! -neo
I don't think they have 75s at the Petco dollar per gallon sale. I'm just planning on having a Jardini Arowana in the tank.
 
Folks typically prefer bigger, but for 180G, 55G sump is more than sufficient.
 
A 55g is fine but the size depends on what type of filtration you want in the sump, I would do a fluidised bed filter
 
55 is fine, but bigger is always better. Check craigslist for good deals on 55s and 75s. I bought my 75 gallon sump off craigslist for only $25.

Depending on where and how your tank is set up, the sump doesn't have to go under the stand. My sump is actually next to tank, rather than under it, as my tank was already running when I switched to a sump.
 
I have a 55 under my 220 (6x2x2.5H). It works fine, but I wish I would have gone with a 75 or 90.

In short, 55 will work just fine, but if you can do a 75 or 90, that will be much better.
 
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