aragocrete help

[fl_izzy]

hi everyone, i recently started making my own rock from scratch and was wondering a few things. i read that it is high on ph to start with and plan on using a 55g that i have empty outside and make it live. will a simple powerjet be enough? it is 600gph. should i circulate in any other way? what salinity should i set at since at first it will be all rock of different sizes and nothing else. should i add some live rock to start or just some bacteria that i still have around. temperatures a big deal for now? or should i use a heater? i want to jam pack it with all the rock i can make and maybe even grow some more stuff in it. natural sunlight good enough? it will be outside under just an overhang in the back of my place. thanks for any help and sorry for the massive amounts of questions.