unfortunately hes gone now. after only two days. sorry for not adding more details im always busy and hardly get time to myself anymore. i have better pics of him now. as hes dead. anymore thoughts so i may try and save the other fish from this fate if they come up with it.
gallons of tank i think its a 15 or 20
it a fresh water tank
the tank has been setup for a year at least
there were two other fish living with him, a silver dollar and some blackish gray body fish about an inch and a half maybe with a small orange fin on the bottom. and there was a black molly about two months ago but it died after we got it found it in the filter three days after we had already checked he filter after one night
there are no live plants
the tanks temp is at 76 now
i don't know what kind of filter i use as its not mine per say
its not a co2 unit
there's some sunlight but not directly it may bounce of the white walls but no direct sunlight beams into the room or on the tank ever
the tank water was changed a week ago and cleaned. i try and do it every 2 weeks. this time took me 3 and a half weeks to do so
i feed the green puffer freeze dried blood worms as he wont eat anything else. and the other two fish eat tetra bites and goldfish flakes and ill feed them every other day but not often do i do that. i try and add just a tiny bit of food twice a day only cause they dont like to ever eat what hits the bottom of the tank, which i always thought as weird
oh yes and there is another fish the bottom feeder, sorry i never see him and we always forget we have one hes always in a rock and never comes out. except when you clean the tank, then he scurries back to hes rock
i dont know what kind of light it is but its always on.