Feeding made simple! So many people have said they struggle to feed their growing colony’s inside of the traditional test tube. So I’ve had these portals made to take away that stress and keep feeding easy , simple and quick. Attach your test tube colony to the portal via one of the four ports , and then simply block off the other three ports with the plugs supplied. Another advantage to these portals is it makes tube changes easy, no more sticky tape residue or trying to create tiny little air holes in sellotape whilst joining them together!
TheAntLady 4 Port Portal