Thanks for all the welcomes

I bought them all from the same pet mega mart.
The smallest one is about 1-1/2 inches and longest is about 2-1/2 inches.
The 2 smallest ones have the brightest colours, whereas the 3 big ones are not as brightly coloured.
I read up on the Loach almanac before I joined this forum that it could be that my loaches are 'greying' & I'm assuming it's because they're still getting used to their new environment.
They're still skittish - always hide whenever I come close to the tank, but they come out during feeding time.
I feed them tubifex worms and crushed shrimp pellets.
I think that previously in the LPS, they were only utilized as tank-cleaners (to eat up all the snails).
My 1/3 of the tank has sandy substrate & 2/3 of the tank has gravel.
It's planted, with ample space for hiding.
Emma,
As for the area behind the head that's pinched in, I think you're looking at the loach's black spot, which in the picture looks like his head is pinched in (the black spot blends with the background).
I read the link on Levamisole HCL, I'm not sure if I would medicate my loaches immediately.
Are there other symptoms I should look out for before being 100% sure that my loaches are suffering from Skinny Disease?
I thought that they're small because they haven't reached a mature size.
MTS wrote:Martin, perhaps a classified section would be a good addition to the loach forum. Perhaps charge a small fee--honor system style that helps support it.
For members like me, it would be a good resource to find fish and equipment. For other members it may be a way to find good homes for fish.
I agree.
It would be real useful to have a "swap shop" or something similar.
I'm a member in another fish forum, and plants & equipments are being traded all the time.
Besides, I'd like to get a good bargain on a new tank
