From 29G to a 5G; What stays and what goes?

[Travillion]

Originally Posted by rishu_pepper

The Spec V in my classroom has just been using the smallest Koralia powerhead and the flow seems to be enough. Granted, I only have a 2" toadstool in there for coral. Anything more, IMO, would be overkill for flow.

Thanks for the response! I actually have a koralia 240, so that's perfect. My only concern is that the flow from these guys are a constant. Would the jebao rw-4 be too strong even at the lowest setting? This is much more appealing for me to use since there would be wave variation.