Why would the abdomen be so big only been lately is it because i upsized the cricket?

Hi i have a mexican red rump sling (1.5-2cm) but i have 2 questions 1).there is a big black spot on its abdomen is this bad? 2).she/he has a unuassual sized abdomen have i maybe over fed him? Oh and another thing I think my G.pulchripes is in premolt how long after the molt must i wait to feed "...

I recently bought a sun tiger sling......unknown size maybe about 4-5cm i got it for R220
Is this a good deal if not what it a genuine price

Where about or who about sells cobalt blues and what are a reasonable price

May someone please tell me how to get to the classified section
Thanks

heya all when is the nexr expo ......in gauteng asb.