Yes please - I've got metal lilys and the surface agitation is risible.
@Karmicnull some pipe detail for you bud
Aquavitro steel pipes
Good:
Look great
Very nicely made
Double suction cups allow you to tilt the outlet back if you want more surface agitation (overnight perhaps)
Easy to clean and seem to stay cleaner for longer
Obviously not going to break if you’re a bit rough when cleaning them
Bad:
Slightly more intrusive within the grand scheme of things
Jet type outlet can be quite intense
Not a great deal of surface agitation when setup normally
The fix:
For me atleast this is how I got round a couple of the issue…
To increase surface agitation I removed the top portion of the outlet end (beak) and manipulated the bottom section to aid water flowing upwards more. This work was done with a dremel, needle file and some water pump pliers. Picture below
I still had plenty of flow, the surface agitation had increased to a nice ripple however I found a bit of a dead spot in the RHS underneath the inlet. Ditritus would gather there frequently.
To solve this one I drilled a small hole in the bottom of the outlet as a bypass to aim some of the water down to that area. It’s worked a treat and has completely solved the dead spot issue, there has been no negative effect on flow / surface agitation as far as I can tell.
Another finding is that pea puffers are very strong swimmers despite their fin size. I had wondered when I bought the jet pipe if it would be too much for them to handle. They don’t seem bothered in the slightest. I’m quite impressed actually, they make it look effortless. If you watch them close the fins are moving so fast you almost can’t see them move at all, much like a humming bird.