6105 placement with 7096

[waelaase]

Hello All,
I've advised to post here
i used to have FOWLR tanks and sometimes some anemone and softies
i decided to move to reef, mainly LPS and softies but hope to go to SPS one day
i have 400 liter L shape tank
i added a 90 liter sump/refuge (skimmer+cheato+some plants+sand and rock and algae scrubber) 2 weeks ago
i'm using 2 PVC overflow (one goes to skimmer area, and the other to the refuge area)
I got 4 tunze 6105 and Multicontroller 7096
here is a chart for my tank

i use 3 6105 with the controller in pulse mode 0%-50% power
A and B work together at 50% then in 0%
C is working 50% when A and B are 0% and 0% when they are in 50%
D is the sump out flow and directed to down a little and left
E and F are intake to sump

here is a video of the tank now
sorry for bad quality video as it's captured by mobile
http://www.youtube.com/watch?v=eMoXyujivjE

now to the questions
1- how many pumps i should use of the 4 and where to place them
2- is the wave i have in the tank shown in video is ok

I notice that i have no movement under A and C pumps and start to have dust covering sand,
what should be the good configuration

 

[rvitko]

I think everything is fine but I would change the flow to 100% or at least 80% maximum and maybe instead of 0% try 30%. I think the placement is about as good as you can get for the shape, non rectangular tanks are always more difficult.

 

[waelaase]

thank you rvitko for your reply
i'll try it today
but what is the best vertical position
how long from the water surface it should and should i make it aiming up toward surface
or should it be horizontal or aiming down

 

[rvitko]

How deep is the tank?

In general they should be about a quarter of the distance form the top with a very slight upward angle.

 

[waelaase]

Hello
it's 55 cm

 

[rvitko]

So roughly 15cm from the surface.

 

[waelaase]

Hello Thank you again rvitko
i have more 2 questions
1- i'm using pulse mode with one p1=0 and p2=50 and the other p1=50 and p2=0
i'll change them to 30 and 70
but if i use night mode, one will be 0 and the other is 50
is there a way to make night mode use low number not the p1

 

[rvitko]

There is not, except to not make a setting of 0 or not use night mode.

 

[waelaase]

Hello,
but even if i did not make it 0
and make on p1=30 and p2=100
and the other p1=100 and p2=30 to make a wave
the night mode will be
first 30 and second 100, which is not what i want
right?

 

[rvitko]

Pumps in the wavemode sockets turn off in night mode, this is done because most people don't want the sloshing noise at night.

If sockets 1 and 2 were at 100 and 30 the night mode would be 30%. Unfortunately there is no way to do exactly what you are trying to do with the 7096.