For sure,
I don't know actually, I've kept many buce varieties over years now and never seen it melt before from heat, we get 40c summers here (obviously it's not that hot in the tank but still)
And being Victoria it's quite cold too most of the year, and up until the very heart of winter when I moved it inside and submerged it, I have grown it outdoors in tubs unheated aswell as anubias, they are actually very hardy and ime prefer neglect and plain dechlorinated tap water with no special lighting or anything, it's just then they grow at a much slower rate more like anubias.
I had a few tubs hidden away at the bottom of a dark green house last summer/autumn submerged and unheated.
My pellia melted hardcore too and it's very sensitive to h202, but otherwise quite hardy from my experience. I cut half of it out and just took the oxydator out for this week, will put it back with half strength 2.45% h202 this time.
Not saying the oxydator is bad or anything like that I love them :) just have to further recalculate as after more reading I've found the reaction time and intensity is also effected by temperature.
As it seemed to run through the h202 really fast the first time.
I cleaned up all the old melted leaves and diatoms, and the sponge filter, water change and ferts/ mironekuton.
(No bentonite lol) water is so clean and clear it's insane.
Forgot to take a pic after it was clean again lol I'll take one tommorow.
Tons of fresh new growth now.
Probabky lift the light up a bit too.