hey there yes u are probly correct on the tetras, its the normal 1s im not so keen on... i have seen some black an white 1s that i like and im guessing there are a lot of different types from the replys, so i will look into it... i did have sholl of 10 harliquins which i rehoused with a friend as she always liked them they were prety big aswell considering how big they were when i got them... my trouble is i have to drive 20 miles to the aquatics shops so i dont like to come home empty handed but ive decided to get 4 yoyo loaches (there called pakistani loaches in the shop i go to ??) instead of clown loaches as im told my tank wont be big enough ?? even though they looked perfectly happy in there group of 3, which i also rehoused with a friend. not sure what im going to do with my silver tails and firemouths yet as my friends tanks are looking full with the fish i gave them... i have been told that fish will only grow to the space that is avalible so it will stump there growth... if this is the case then what are the problems with that??? im gonna list what i had in the tank b4... 2 striped angels, 3 clown loaches, 3 sucking loaches, 4 flyingfox, a common pleco, 10 harliquins, `10 white mollies which obviously increased over time the randy little buggers lol and a sholl of 10 of another type of small fish that i can remember the name of or find online ??? all the fish seemed happy and were all together for about 2-3 years with no obvious problems other than the sucking loaches would chase things out of the ship wreck lol... but thats normal for those fish...