That is bad ! You would think they would care about where the fish go and make sure they go to the right size home ! The person who sold me my loaches are definitely in the wrong job ! I now have to part with him and I have got very attached ! I’m very sad about it and feel sorry that he won’t have his little house to retreat into when he goes to his new home !
Partly my fault as well though . I should of done my research before buying one . I just asked which fish were good for eating algae and keeping the snail population down and even after telling him the tank size etc he sold me 2 !