This tank is about 6 months old...
I do 10% weekly water changes, and I'm trying to find some macroalgae locally to help with the nitrates.
Honestly, I've had one casualty in my tank since I stocked it. It's quite stable, and I'm consistent with testing and maintenence.
As for the ammonia, I think I need a new test kit. It was a "hand me down", and I think it might be no good... I've never gotten a reading lower than .5 since I started the tank. There may be a possibility it's a fresh water test kit.. It doesn't say on the bottle.