I like Aquotix & Vebas for fish. Rock & stuff you can either collect near the beach or buy second hand. Fish shops are a rip for rocks ($4.50ish a kg for Texas Holy and that shit is heavy). Limestone is all over the coast, just dont pick it up from the roadside, go further in because sometimes the councils spray along the roadside with chemicals which will kill your fish.

Don't you work near/in the Swan Brewery? Aquotix is just on Bannister road so nice and close. They have a decent range of fish & the staff are helpful. Will bring stuff in for you as well if you're keen and ask them.

Vebas is pretty awesome, huge range and staff know their stuff. Get some really nice fish there.

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Bush chook enthusiast