yeah but thinking a few more might jump on the bandwagon, setup cost is an issue, will have to do a full costing before submitting it, need to work out the potential average returns, if it cost $20 a week to run a couple of tanks, and we sell 1-2 fish with a profit of $40, then its not worth it, if we can sell 3-4 fish profit of $100 it is (mainly to cover risks etc...)
I am avoiding adding potential additional sales such as filters, lights etc... to save that for my ace in the hole come submition day