Every Aquarists Worst Nightmare (Please Help!!)

[thing124]

So today i get home from a long day at work, all was as it should have been but apparently it wasn't. As i peered into my discus/Planted tank in disbelief my eyes quickly focused on my stock of fish all belly up at the surface. I really cant believe it i dont know what could have caused it i do water changes every single god forsaken day (about 25%), water quailty was prestine and the tank was at a constant 87degrees F. My eyes then fell on this mold type growth at the bottom of the tank can someone help me identify this growth im not in a rush because the tank is no longer stocked (RIP DISCUS,MICRO RASBORAS & L-18).

 

[rallysman]

Crazy. I've never seen anything like that. Perhaps Oddball will chime in.

Sorry about your losses

 

[Oddball]

Looks like rotting detritus. Is that a sand substrate? And, when you perform your water changes, do you also gravel wash? Unless someone dipped, dropped, or poured something into the tank, I'd have to guess that your substrate's bio-filter crashed.

 

[thing124]

i vac the sand and turn it everytime i waterchange, i doubt someone poured something in my tank its in my living quarters and my family knows how much i love my discus and they wouldnt do that to me or the fish

 

[BIGgourami]

it definately LOOKS moldiferous. some of the spots are "reaching out" to other ones. did you tear up any drywall or redo any water damage recently? mess around with an attic fan? something?

 

[me_wee_todded]

oh my god
sorry for your loss

 

[robmcd]

That really sucks. So sorry.

 

[thing124]

are you serious my dad just cut down some drywall in my room i guess he forgot to cover my tank could it be that?

 

[abpositive]

That's the saddest thing I've ever heard of.
I am SOOO sorry.

 

[sweeTang21]

sheetrock is highly toxic to all living organisms. thats why were supposed to wear respirators when workin with it. i am sorry. if i ever lost my discus that way, i would sit in a corner for days.