125 gallon **need a mentor**

[Kryptic4L]

IMHO. Run what you got, no matter how much you prepare, we evolve as much as our equipment does. Just make sure the fx5 was not used with copper treatments.

I guarentee within a year you will have a better idea if sw is for you, what type of corals you and fish you really want.

I feel the only way to really know is get salty for a bit and get used to the maintence schedule.

Nothing wrong with cycling some rocks and adding a few fish and evolving from there. I've gone through about 6 tanks in 6 years and I'm still not sure what the next year will bring.