I have to agree, the LFS
I buy most of my livestock from keeps his water parameters almost identical to mine, or should I say mine to his...whatever. I just float and drop. And those mushrooms are so hardy, you can take em out of the tank, cut them up like a pie and drop the mush back in. 2 weeks later you've got 8 shrooms
growing, and the stalk is growing back too. I love em.