New Tank, Cloudy water problem

[Glowurm]

I thought about changing the gyre into two "MP10 Ecotech" units.
And i did wash the sand for 30 minutes. Thought that would be enough.

You dont need to change, just tone down the speed, like i said i've got a maxspec and it runs 60% at max on random setting and the tanks larger than yours.

The fact i can see bare bottom on the other side of your tank suggests either the sands to fine or your flows to fast.

 

[xitsmike]

Get some filter floss in there, it will catch the small particles. The Gyre should also be placed higher up near the surface imo.