hi.....everytime i go to my local aquarium fish shop i always ask advise on what fish go with what and always tell them what i have in my tank already........last week i went and told them i loved the clown loach and asked if i could put one in, i had heard that they liked to be more in a group but the lady assured me that in my tank i could put just one in and it would be fine.....now i am hearing they need a lot of space....could someone please tell me what they think......im getting a bit worried cause pets at home seem to be useless and this shop is supposed to have 30 years experiance