cheers warwick i might take u up on the offer later on.
the system i'm doing 3 growbeds 2 sumps 1 fish tank
atm i have have heaps of info on building the system. atm i'm just trying to source all the gear i need at a good price. food grade ibc's i have seen on ebay (local guy) for $90 this seems an ok price (i'm after 6 ibc's) then the grow bed medium will be my next problem the expanded clay balls would be my ideal medium but the price of the stuff is crazy. i'm doing 3 grow beds for the moment 300lt each (for purposes of working out how much medium i need won't hold that much water) so 900lt, on ebay i have seen it for abt $25 for 30lt. i can use just 10mm pebble but my info tells me the clay is better.ther r other methods like floating raft but i think for what i want to grow this won't be suitable.
i wasn't sure on what fish to stock but have received some good info so far on that cheers to craig and woftam. i was also considering having some yabbies or redclaw in the 2 sumps i plan to have but not sure how these guys will go with low ph.
so thats where i'm at if anyone has more advice to add