Flow Through DSB

[naesco]

Live rock is good.
Deep sand bed is good.
Doing at least a monthly water change is good.
Getting rid of the bio wheel would be good
And keeping the nitrates down is good which all of the above will do.
It is nice to see that you are really trying to provide the optimum conditions for your coral.

I think you should take a little time to research the optimum conditions for your fish as well though.

For example, tangs require the longer tanks (6 footers) that larger tanks provide.
Your is four.
Tangs are swimmers. They spend all day swimming back and forth and thus need the swimming room.