Do I need a powerhead?

[Andreas' Reef]

So I have a 13.5 gallon fluval evo with zoa colonies, mushroom corals, and a small toadstool. Do I need a powerhead.

 

[Smirkish]

You may want to put a small one in eventually, depending on your flow. I ended up adding one after a couple of months. The toadstool can handle a decent amount of flow, and will likely need more when it gets larger. The others should be fine.

 

[Azedenkae]

I agree with @Smirkish, all dependent on if you want/need more flow.

 

[Westside Guy]

You may want to put a small one in eventually, depending on your flow. I ended up adding one after a couple of months. The toadstool can handle a decent amount of flow, and will likely need more when it gets larger. The others should be fine.

I totally agree about the toadstool. I have one that is the beneficiary of the strong flow coming from my Nero 5 and is growing like crazy!