Hi Beef,

Another bug for you I believe.
Forge: 1207
BigReactors Version: 0.4.0rc9
Description: You are not able to place a bucket of either Yellorium or Cyanite bucket into any tank. It registers a right click but no fluid appears or are inputted into the tank.

Not sure if this was entirely a bug or intended however it would be nice if they were storable in tanks.
Hope this helps
-Snow

Those items are leftover placeholders from earlier versions of the mod. They are not player-craftable and are not intended for player use.

Ok thanks for letting me know.
-Snow ;)