Yesterday we played CE and one of the players had Fungus. In the end he was super strong. He had like a huge tower of other ships and every encounter the player was ,had like 20 ships (because he took over the ships he won) did we play it worng ?
Fungus is crazy powerful, so you didn't necessarily do anything wrong. The fact that it works as an ally makes it very snowbally: the more it gets invited as an ally, the more ships it eats, and the more ships it eats, the more you want it to be your ally...
1. When the Attack player call for assistance, can he make demaneds ? (For example: "If your are going to join me you have to send at least 2 space ships).
You can say whatever you like, but those requests are not binding. If someone doesn't do as you ask, though, they might not be getting any more alliance invitations from you.
2. After that Main players asked for help. Does the other players can have a discussion with the Main players Or\And ask questions like: "Can you win ?" , "Do you have high enough encounter cards ?"
Table-talk is fine. Players can ask and answer questions, truthfully or otherwise. They cannot physically reveal cards from their hands, but they can say whatever they like. Just don't grind the game to a halt by taking too long.