Or, you could bring a space yard ship along with the fleet. When the fleet is running low on supplies, park it somewhere and build a space station with nothing but the crew stuff. When it is built, put it in the fleet and on the next turn, all supplies will be replenished. Then, you can scrap the station and be on your way. You lose 2 turns doing this, but it would probably take a lot longer to go all the way back to a resupply base. Gotta love the built-in quantum reactors that space stations have!
