Liberty2k4
Aquarium Advice Regular
Looks like i'm still stuck too. After 4 days with shrimp still not a trace of nitrite! Going to give it a few more days but then doing a complete overhaul. The only thing I can think is that the sandblasting sand I currently have is leeching chemicals into the water and inhibiting bacteria growth. I ordered some CaribSea Instant Aquarium Tahitian Moon Sand today that should be arriving next week. I'm going to drain 100% of the water, remove everything, triple rinse everything and start over with new sand. How is your cycle coming along Dlee?