advice

[gavh86]

Hi i have had my tank set up now for a week its 130 litres i have had around 10kg of live rock in it 2 hermit crabs i didnt do an amonia test till 3 days later from setting up and it came back clear but after 5 days its tested possitive for nitrite and nitrates how can that be before amonia ??

 

[MacDracor]

When using live rock, there will already be some ammonia eating bacteria present. Plus, if there wasn't a lot of die off, you wouldn't see a lot of ammonia to begin with. Right now, I would add an ammonia source and continue testing.