yes they are in the same bucket..

i noticed when i was getting rid of my dead plant the size of the root ball it had.. and there should be plenty of space in the bucket for all the roots.. they might compete with each other but am going to prune the branches in a way that all 4 get what they need .... remember i am winging it, and this is only my second time ( technically first since 2 of first 3 died ) so hope this helps. enjoy reading my grow log as i will be posting photo's as close as i can to show the growing stages . and i will keep updating info as my regimen changes.