Switching Current Water Director (SCWD)
$35
Will trade for bright color zoas (water melons, eagle eye or blue Lakers)
Used, very clean, bought but never got to use it.
https://www.youtube.com/watch?v=133tgjyPIyQ.
.
https://www.youtube.com/watch?v=1KaIlZ5EJ00
.
https://www.youtube.com/watch?v=lWUUZf8SH4s
.
http://www.3iqventures.com/threefourthinch.html
.
You can also have a simpler setup (that is what i intended to do but never got to it) , by just placing the
scwd straight in to the tank with only one hose connected from return pump to the scwd's bottom inlet and have it switch the current inside the tank instead of two hoses like the guy in the YouTube video.