Sick guppie HELP!!

[TheRock]

SICK GUPPY HELP!!!


I have a 20 gallon 30" wide
50 gallon water filter
Air pump
Heater 100w
Live plants x3
Driftwood x2

Fish
X8 neon tetra
X2guppy x3 babies
X7 ghost shrimp


I'm having an issue with my guppies dying I had x5 and 3 of them died with in the last 2 weeks
I went to my local store to test the water and everything seems fine!

Now I'm left with a couple of guppys and noticed that the male is growing a yellow dot on his side fin

I'm new to this world, really need some help, I'm also thinking in add more fish later on,
witch other communitie fish would you guys recommend me?

Thanks for your time

 

[Delapool]

Hi, really need the exact readings for ammonia, nitrite, nitrate, ph and temp if you have them?

 

[ppo8820]

First off, you can fill the tank higher so they have more gallons. ammonia and nitrite need to be at 0 if your tank is properly cycled. If you didnt cycle it, then there is your problem. uncycled tanks open up the possibility of many diseases and fish death. You could have fin rot or a type of fungus, but I cant tell from the pics.

 

[larochem595]

How hard and how acidic is your water?
Also, ammonia, nitrites and nitrates?
Did you use a water conditioner?