goby in a dsb

Is the problum with the diamond watchman that it is a sand siffter and thats why its a bad idea for the dsb(eats the fauna), or would any gobie non siffters but more like a jawfish also eat the fauna?

moving my last question from the sand fourm to here to ask about the gobie.


after a little research online i see fauna is a collection of like things in one place for a perioed of time-- so when you say the watchman will eat the fauna your really trying to say it will eat several different kinds of detivors that i cant see (smaller than copepods). so would rotifers be considered a type of detervior fauna ive never added them on purpose to my tank. dont have corals, just a couple of mushrooms. i read this article it was very helpful The Infamous Detritivore by Ronald L. Shimek, Ph.D. - Reefkeeping.com

another question for you, when i add my top off water (not saltwater) i usally put it in my refugium pouring slowly (gallon= 15sec) so the colder water -room temp 68-70 doesnt freak out one of the fish/inverts i have in the tank and possible shock them to death. leaned my lesson from my clown who knocked himself out once by swimming right into the fresh water. Dont know if it was the salinity diff or the temp diff right where the water was going in but he crash landed on the sand bed for about 15-20 seconds. so thats the reason why i put it in the fuge, but thinking now if it can/will kill a invert wont it kill all the copeopds/detivor fauna thats in there? the very thing im tryingto keep alive. pehaps i should pour new water into the overflow so i can mix some!