4 fish and levels are zero how?

[Alexx17]

I don’t understand? And I have cyano

 

[rock_lobster]

because all that slime algae is consuming the nutrients as they are produced. Also that may not be a zero on the ammonia test.

 

[RandU]

Ammonia looks like 25-50 and nitrate around 5

 

[Randy Holmes-Farley]

I'm afraid I have no idea what you are talking about. No pictures show up

edit; showing now

 

[XNavyDiver]

Ammonia looks like 25-50 and nitrate around 5

Agreed. Ammonia looks like .5 to me.

 

[rockstarta78]

How old is the tank? Did it finish cycling?

You have ammonia in your tank, which could be detrimental to your fishes. FWIW I always get 0 NO3 with my API test kit, but my Selifert kit would constantly show 5 ~ 7ppm. For that I have little faith on API NO3 testing. But you have lot of slime algae, which is why you probably don't see any NO3.

 

[Alexx17]

How do I fix this problem? Also, how do I keep it from happening again?

The tank has been up a little over a month and a half now. I used api quick start. And I do water changes every 2 weeks. And I replace the Filter car.. every month.

 

[Alexx17]

I really don’t want stuff to die. I just don’t know what to do.

 

[roberthu526]

Get a different test kit like Red Sea. I suspect you are getting inaccurate readings.