Hello All,
First off thanks to those who provided some tips on being patient and what I need to do to fix this.
I think I am finally starting to see the light at the end of the tunnel (or in this case the back of my tank

). Here is a quick overview of what I did to fix this and what I believe is the root cause.
- Two weeks ago today I replaced my clogged filter cartridge per the manufacturers instructions,
- Two days later the tank starts to form a white cloud
- Two days after the cloud forms 3 of my five fish are dead
- Tank is now so cloudy that I cannot see the back of the tank and the two remaining fish are just eerie shadows moving around
- Performed daily water changes 20% - 50%
- significantly reduced the amount of food the fish get sometimes even skipping a day
- After day 8 from the filter change then new filter is clogged again. I tried to clean it by swishing it around and squeezing the filter. It did not help filter was still clogged. I did not want to start the cycle over so I replaced the filter and dropped the old one in the tank.
- after 48 hours of the old filter floating in the tank I removed it and did my normal daily 50% water change. At this point the tank was still so cloudy I could not see any fish or decorations.
- within 6 hours of removing the old filter out of the tank the water started to clear up and ammonia levels started to drop.
- within 24 hours my tank is crystal clear
Now from an aesthics point the tank is bueatiful again but the Cylcle is still not complete (but it is close)
Using API test kits (Many have suggested these but I already had them)
Ammonia: approx 6ppm
Nitrite: approx .5 ppm
Nitrate: approx 8ppm (This was the only test kit I did not have until recently)
PH: 7.2
Question: for a 20 Gallon tank with African (the generic kind) Cichlids what would be a healthy amount of Nitrates?
I am not sure if it is coincidence or not but I believe the root cause was a contaminated filter cartridge. I am not sure how because I unwrapped it from the new packaging and then immediately used it. But the fact that once this filter in question was completely removed from the tank it cleared leads me to wonder...
Again thanks for the tips and support. I hope to become a regular poster on this forum as my tank continues to thrive.