need help starting my nano

[Pan]

for cycling a tank uncured is usually preferred but either way it can take 2-6 weeks for your tank to properly cycle. Mine took 5 weeks the first time....

[i have crabs]

change some filterfloss and mabey a scoop of sand from your 55g tank if possible to seed the bacteria and get things going quicker,thier will still be a cycle period but you could mabey start adding a small clean up crew like some hermits or mabey some snails after a few days or a week.