Guppy Problem

[Piltdownpaul]

how come none of the other fish are affected if the guppy has a disease?

Well some fish react differently to bad quality water-danios for instance are far more tolerant and are often used to kickstart the ammonia cycle because they can tolerate a higher amount of ammonia in water. Guppies will also flick off rocks etc if the nitrite starts to rise-they just need good water to put it bluntly.

 

[WILDER]

If your'e not answering the question we can't help.
Swim bladder can be fetched on by bad water quality.

 

[AllenLeicester]

i do 70% water change every 2 weeks

 

[Piltdownpaul]

I'm just suggesting that while at the moment you dont have any stats on your ammonia,nitrite etc -to lessen a possible poor water situation, do a 20% change daily until you can check your stats and go from there.