It's also time to catch up on some long overdue photos. These are for
Backfromthedead
, who asked to see photos of the way my Sicce pumps were set up.
Hopefully the slight upward angle of these pumps is apparent enough in the following pictures. It's one of the reasons why these Sicce pumps are my go-to over, say, a manifold or a traditional powerhead with inflexible, nonmovable flow outputs - much easier to more precisely direct flow to the direction it needs to be going.
I find surface agitation a valuable indicator for how well this is producing distinct flowing and dead spots. Even though it's not needed for max oxygenation (as cockroach mentioned), the more of it that there is, the better positioned the pumps are to create the bottom's intended dead spots.
Finally, I remember you used a RFG for your manifold because the lack of dead spots stressed your fish. It seems like the the Sicce Voyager's ring nut does pretty much the same thing (or at least, gets the same result of more dead spots).
As mentioned in Comment 177, running them with the ring nut twisted to partially cover the holes retained the dead spots needed while still giving me all the extra flow. I would guess that's because smaller holes mean a more concentrated, yet narrower current that doesn't intrude into the area of the dead spots like current from larger holes seems to.
Hopefully the slight upward angle of these pumps is apparent enough in the following pictures. It's one of the reasons why these Sicce pumps are my go-to over, say, a manifold or a traditional powerhead with inflexible, nonmovable flow outputs - much easier to more precisely direct flow to the direction it needs to be going.
I find surface agitation a valuable indicator for how well this is producing distinct flowing and dead spots. Even though it's not needed for max oxygenation (as cockroach mentioned), the more of it that there is, the better positioned the pumps are to create the bottom's intended dead spots.
Finally, I remember you used a RFG for your manifold because the lack of dead spots stressed your fish. It seems like the the Sicce Voyager's ring nut does pretty much the same thing (or at least, gets the same result of more dead spots).
As mentioned in Comment 177, running them with the ring nut twisted to partially cover the holes retained the dead spots needed while still giving me all the extra flow. I would guess that's because smaller holes mean a more concentrated, yet narrower current that doesn't intrude into the area of the dead spots like current from larger holes seems to.