Emergency!!! All fish are at risk of death!!!

Freddy

It looks a lot like that, except it's more like a lot of spots that sometimes clump together to make a big white area. A good scrub is all that's needed to get this stuff off.
It was growing on the suction cups of the heater too, so idk if it's just that kind of material or what. But I had some growing on my little cave I made, mainly on the silicone sealant I used as glue, so I wasn't sure if it was a parasite or fungus or what.

Angel079

What you're having there is not fungus and therefore making adding chems utterly pointless that is calcium built ups from the hardness of your water!!!
I can only urge you to be MUCH more careful about dumping random chemicals into your tank then you appear to me at the moment. If a tank or some decor is dirt: Take it out & clean it w/out cleaners and only clean water! If you have calcium built up on parts: Take them out soak with vineyard brush off done!

Medications and other chemicals in a closed system like that should ALWAYS be used as the very LAST resort not as a first 'best guess' attack on the fish that is sooooo dangerous what you're doing there!!!

Mean Harri

Holy emo. Dude, chill.