Good Soil

I'm having a serious problem with nute burn on my plants. I made the mistake of using miracle grow and am afraid to flush the soil because i just finally got rid of the fungus gnats. Thinkin of scrapin this batch and starting over again and wanted some suggestions on good soil and where it can be obtained.

Foxfarm Ocean. I searched and it was the most recommended. Can't help you with were to get it.

if its a good plant jus flush it and keep ur humidity down
better than chuckin it, mite as well try
and fox farm ocean warrior is where its at

You could just go to like home depo get some potting soil and transplant the plant.