ok so...
slow the fux down mango.... lulz
first off, doesnt sound like you rinsed the sand enough when you put it in, fyi.
and (not that it matters now)did you follow the instructions i posted for adding the sand and caring for the fish during the transfer??
dont mess with sensitive gobies, 2 spots almost always nearly die, especially in a newer tank,
and clown gobies will perch on and kill sps corals.
you need bullet proof starter fish...
get damsels, clowns or chromis to start.
there are several damsel species that are cool looking and mellow.
choose 1 or 2 fish, AND THEN DONT ADD ANYTHING FOR AT LEAST 1
month!! or in your case EVER AGAIN!! less is more,
and dont over crowd that tiny tank where fish cant swim very much because of the crappy footprint.
then as folks have said, focus on SOFT CORALS FIRST...
leave the lps and sps till you figured out how to not kill stuff.
so , favias, acans, chalices, candy canes, hammers, and any sps, all of it should wait until
you can efficently test your tank and dose your tank all by yourself.
so yeah, zoanthids, mushrooms, kenya tree coral, are all perfect.
also, i cant believe you havent been running your powerhead.... ITS NOT TOO MUCH FLOW!!!!
think about the fore reef in the ocean, if you had any idea how turbulent it was, you wouldnt be saying that.
that flow is vital to the health of your reef, that is how nutrients and wastes are processed by bacteria colonies in your live rock,
who cares if your sand is pushed out of the way.. reposition the powerhead.