I've just got this Red Knee spiderling and it's tini!!! I can see little bristles but it just looks like a house spider if you just glance at it!! Anyway, my problem is there's no hydrometer on the vial so i wondered how often i should dampen the substrate? Also, every time i open the lid it legs (pardon the pun) it to the top so if i take the lid off it would get out. Are they ok to handle this young? And are there any tips on how to keep it in when im trying to fed it? I would rather not handle it yet as it's so small.