How much filtration for a 180 gallon tank

[TwoBrownDogs]

I have a 72x24x24 tank with a fx5 and a 405 is this enough for my fish.

 

[Bderick67]

Most likely yes, it does depend on stock though. What type tank are you planning, what type fish will you be keeping in the tank?

 

[Guapote]

Until I set up my sump, I am running 4-AC110's on my 180 with no issues (so far at least).

I think you will be fine.

 

[crisper]

Should be fine.

 

[Merbeast]

Should be fine.

Wow, that is a very informed answer
/end sarcasm

As a poster above me pointed out, it depends on fish stock, feeding and the acceptable level of poo on the substrate.

Try the 405, and invest in a test kit. If you like the results, then the 405 is enough. If you see too much poo, or if you have problems with ammonia or nitrites, buy another filter to supplement. (I am a big fan of redundant filters over a single larger filter.)

On my 150 (135 actual) gallon tank, I had 3 fx5's, an aquaclear 100, a fluval 2 and a sump. Now, my tank was HEAVILY stocked, and I can't stand to see poop on the gravel.