Koralia safety question?

Never had one on any of my 4 Koralias and no problems, thats with anemones and all.

 

would leaving this off make the flow more gentle since it's wider?

 

yes but not by much

 

Yes, and I say by quite a bit since its diffused and not directional.

 

hmm i have to disagree, when i took mine off it was a slight decrease in flow not much at all

 

Decrease in velocity, increase in total flow, two different things. Its like comparing a Maxijet 1200 to a Koralia 4, the MJ blasts in a concentrated jet while the K4 does 4 times as much dispersed flow. Its hard to see but try dumping something like Cyclopeeze into the stream and you will see what I mean.