I have had my tank for 2 month and ever since day one the water has tested good (no ammonia, no nitrites and nitrates are consistently under 10 ppm). I tried a new food for the fish (they didn't eat any of it) so it just sat on the floor of the tank over night. Today I tested the water and for the first time it tested for nitrites about .50 ppm and my ph was lower about 8.0. Most of the food is gone (I think the blue leg hermit crabs eat it over night) and my water looks a little cloudy. What should I do?
Test results yesterday
Ph 8.3
Ammonia 0 ppm
Nitrites 0 ppm
Nitrates 10 ppm
Test results today
Ph 8.0
Ammonia 0 ppm
Nitrites .50 ppm
Nitrates 10 ppm
Test results yesterday
Ph 8.3
Ammonia 0 ppm
Nitrites 0 ppm
Nitrates 10 ppm
Test results today
Ph 8.0
Ammonia 0 ppm
Nitrites .50 ppm
Nitrates 10 ppm