I use a AP test kit (the liquid kind). Water parameters are Ph:7.2 Am:0.3 Ni:0 Na:15-20. I will a water change to dilute the ammonia concentration. Tankmates are 2 Geophagus Tapajos, 2 Geophagus surinamensis, 1 geophagus steindachneri, 8 chromidotilapia guntheri fry, dragon goby, 8 tiger barbs, 2 pictus cats, another 2"ebjd, farowella, royal pleco, and a 1" alto compressiceps. All fish are still small (under 4") so it is not overcrowed. I added some melafix last night. It is a 120 gallon planted tank. As for rough decorations, there is a few quartz rocks and a large piece of driftwood. Here is a pic of the tank: