Help Strange Tank Readings.

[philfista]

Hi all,

4 days ago i posted a topic about the reading on my tank . Basically i swopped the media in my internal filter to my external filter . In doing that i lost a silver shark . So i thought the filter must have started a mini cycle . So i put in ammo lock took some readings and they were as following..

Ammonia 8.0 , not good
Nitrite 0
Nitrate 10

So i have been doing a 15% water change every day for the last 4 days . The readings every day have been the same , no change .

Checked the tank for anything dead, gravel is clean , water is crystal. And i cut their feeding down to every 2 day . Fish look great.

Is it possible there is nothing wrong and the ammo lock is giving me strange readings? any advice ? The death of the shark was stress?

 

[*Fishkies*]

How long had you had the shark?

What size is your tank?

I would consider feeding every day still, however up your water changes to 25% if you can. Also my assumption would be the ammo-lock is causing the ammonia to stay the same. I would stick with water changes for a while and see how well those alone do.

What is the ammonia tap reading?

 

[philfista]

Hi had the shark 6 months . The tank is 180 litres. My filter is a tetratec 1200. More then enough.