More flow will help with the algea.
Scarlets do a good job on the sand. They pick up each grain and and put it in their mouth. Then they spin it in there mouth cleaning all the algea around it. Once its clean they spit it out and start on the next piece. They clean rocks too. I heard bluelegs are aggressive and are known to kill scarlets,and snails. Cerith and nassarius vibex help the sand by burying themselves. I heard emeralds are very good too.
I like my sandsifting star, but some don't like them because they eat all the live creatures in the sand. Which is fine by me.
Levels look good.
I got my order today . Yay
I forgot to add the pygmy but thats ok.
My flame angel looks great ,happy and eating,no fighting
, and everything looked healthy, The condy was a little bleached, but that is expected. Will see how everything goes.
One of my yellow gobies took a trip in the overflow box. Good thing the prefilter is there.
I would consider making a drip plate also. The box that houses the pad with the holes in it.
Your pretty much trying to slow the fall of the water.