agarnite sand

i was at a shop, i talked to them about sand, they told me to use agarnite max, instead of agarnite reef, he told me since with that size of sand, the bio will fall through and go underneath of the tank, causing big problem so he told me to go with finer sand. Also, he said that with a plenum, the bio will be trap further causing a total melt down in the tank within two yrs, any suggestion, i have both side of the story so i dont know what i would use. thanks again

 

do i really need a DSB? or should i leave it with a Remote sand bed? or just a shallow sand bed?

 

In my opinion, I would say that it is up to you which way you choose as far as grain size for your benthic area of the tank. I employ a deep sand bed for my reef tank with great success!
Oh, as for the grain size again, it would have to do with the types of living animals you wished to keep as many require various grain sizes. Ultimately diffusion and advection will show their ugly faces no matter what size sand grain you employ and detritus etc. will be draw into your sand bed. But their are ways or reducing this... Incorporate your live rock ontop of eggcrate with the sand underneath that. Also, an increased water flow to the bottom of your tank with efficient filtration will help as well as reduced feedings!

 

well i really want to keep some angels and tangs, with some inhabitants . i am planning to put in a plenum

 

my plenum helps alot.its only a yr old so i can't say if that guys right but i seriously doubt it'll crash after 2 yrs.

 

well I have donemore research and I might found his problem he use sugar size grain and thatcould cause the failure from what I know