valuable lessons made. thanks for pointing to all of us.
it takes alot of courage and effort for someone doing what u said.
good bro. i think its going to work. but do put more PVC pipes.
read that ich will somehow be found in substrate. IMO, no need to stir the sand bed. just leave ur precious tank fishless for two months and starve the ich to death.
for chiller, just watch the temperature. dun think its a problem.
update us the results too.
im sure it going to be good.
good luck reefer.