Sunkist Bounce Has White Mouth Showing

[Aiden22!]

So I recently received this piece and its my second attempt at keeping big bounce mushrooms in my tank. It’s showing a white mouth expanding outward and I’m wondering if thats an issue or possible sign of bleaching. I lost a nice Sunkist and a baby OG last year on my first attempt without any clue as to why they died. Ive kept mushrooms in this tank for a while but only seem to have issues with bounce mushrooms. Thanks for your responses, any input is helpful.

Parameters:
Ammonia: 0.05 ppm
Nitrite: 0.04 ppm
Nitrate: 1.90 ppm
Phosphate: 0.05 ppm
pH: 8.1
Temperature: 75 F
Light: A360X Tuna Blue
(not sure of the par)
Tank: Biocube 16

 

[jsker]

Your parameters look good except the ammonia I would suggest to run some carbon to get rid of the ammonia and nitrites