Fiddler crab help!

[Francisco]

I had my fiddler crabs for over a week now, but the 1st couple times I feed them green algae pellets....they ran out to eat it..But a couple days later, they are not running out to get the food. I don't know if they are eating. I'm scared of they are eating or not or if they eat when I'm not seeing. But do you think they are ok or sick? Or something else...? Cause I used to see them personally eat now I don't even see them go outside for the pellets.

 

[Jessie J.]

How big is their tank, and what are their parameters? Does anything else live with the crabs? They are probably eating when you're not looking. If you put in food, is it gone later? Also, how many crabs do you have?

 

[Colin_T]

Make sure your water quality is good. Check ammonia, nitrite, nitrate & pH and do a 75% water change each day if there is any ammonia or nitrite reading above 0.