Greyden-
If a BH is infinite mass/gravity, then anything that enters the event horizon is almost instantly accelerated to c. That anything is also reduced to it's elemental particles and under the infinite g reduced further to to it's "Super-Strings".
However, I do wonder, do super-strings still continue to vibrate in infinite g?
There can be no charge under these conditions. Therefore, no gas, hense no plasma.