
i left for school so i left my tank in my older brother's hands (who supposedly is good at taking care of fish) and i come back to my favorite fish dead and my bumblebee with this weird pimple looking thing on it's face...I have attached 6 pictures (most of which low quality) but it at least gives you some idea of what it may be...
Any information would be useful (as to what it is and what i should do about it)





