if it's not a fungus for sure then it looks like phosphorous deficiency-type colouration, which is fairly unique. Look into your feeding regime as to whether that could really be possible first before addressing issue under this assumption. Thats all I got for you, sorry.
if it's not a fungus for sure then it looks like phosphorous deficiency-type colouration, which is fairly unique. Look into your feeding regime as to whether that could really be possible first before addressing issue under this assumption. Thats all I got for you, sorry.