Thanks Matt! I've missed the Pearl berry so I was very happy to stumble over it.
No picture update this time, but I have decided to change the flow in the tank. I've been using a Maxspect Gyre XF150 and two small stream pumps for a couple of years now. I have been happy with the Gyre, but the problem I've had with this setup is that it is impossible to have sand in the tank.
I ordered some new pumps from an Italian company called Rossmont. I'm looking forward to try these out. These are AC pumps which is possible to control with a Waver box. These looks very promising.
Here's what I've ordered:
2 x Rossmont Mover M5800
2 x Rossmont Mover MX13400
1 Rossmont Waver Master WR-2CH to control the MX13400's
Here's a review of the Waver:
http://www.danireef.com/2017/04/21/r...io-controller/ and a review of the largest MX pump:
http://www.danireef.com/2015/07/30/r...-depth-review/