There is no case for lower night time flow in aquaria, I have logged 272
night dives and the currents are the same as in the day, yes there are
variations, but non more so than during the day.
Regardless of what water propulsion pumps you use to create flow in your
aquarium, none come close to just how strong real currents are on real
reefs.




"CapFusion" CapeFussion...@hotmail.., com wrote in message
...

"Justin Boucher" wrote in message
...
I was curious to know how many people out there reduce the current flow
in
their tanks to simulate calmer night oceans? I have a 240 FOWLR and
although there are good hiding spots in the LR for the fish to sleep in,
I'm
afraid that once the tank is fully stocked, sleeping arrangements will
be
quite tight. Also, fish size plays a part. I'm aiming at Butterflies
and
Angels which get rather large.

Currently I have ~2000gph returned through two sea swirls 24/7. No
other
water movement in the tank. Just the Sea Swirls rotating the returned
water
around.


I do not try to simulate clam night. I have several pumps. One main [Mag
12]
pump to keep the current 24/7 for 100USG. There will alway be water return
from the sump and refugium. The others in the tank can be off or on which
depend on my mood or whatever the reason. One main thing you need to take
note is - try not to have dead-spot from anywhere in the tank.

CapFusion,...