tank cloudy

[Scorp1on]

our tank was nice and crystal clear for a long time. few weeks ago found the female betta in it dead. few days later found a black lyretail molly dead. tank was real cloudy. did 75% water change and next day it seemed cloudy. well it's still that way. our fish seem ok no dead ones i missed decomposing. whats going on? tank shouldn't be cycling again. no one was added and it's been established for over 6 mos

 

[Da_Oz]

Can you test your water?

 

[Scorp1on]

everything was at 0
was planning on testing again though

 

[Scorp1on]

Amon .25
nit 0

 

[Joby]

I have the same problem

tank was crystal clear till I put some fin rot meds in last Thursday and now its milky cloudy in there and all the fish are at the top gasping and I've got furry plants and pebbles etc

Been to lfs today and they are puzzled and say it can't be the meds even though I have the same problems in my hospital tank which also had the meds but my other 2 tanks are crystal clear

Bought an airstone and pump for them today and they seem happier now

Guess its just wait and see what happens