Per 
6000, is a Keter class object, for its effects on animals that have been used to test it. Five birds of different species were sent in to test the large endless pillar. About 1,000 feet in the sky the rope holding birds together disconnected and fell to the ground. Along with the rope, oozing green liquid fell from the sky along with stained feathers. A 500 foot platform was set up in 6000, where a D-class personnel stood at the top. The personnel had a earpiece connected which was connected to security teams at the bottom of the pillar. About five minutes in to the test, the D-class personnel reported headaches and sound vibrations that caused ringing in the ears. Suddenly another five minutes later the earpiece connected to the personnel along with green oozing liquid fell from the sky.
After the test, all classes were restricted from entering the chamber. A large facility filled with wooden platforms at certain levels, to test on levels where animals feel the effects. D-class personnel are allowed to enter for testing the features of the pillar. A security team enters the facility every week to look around for lingering escaped animals. However, reports of green, slimy, bipedal creatures wandering through the facility. Escaped animals, have signs of headaches, sound waves, hallucinations and even heart attacks.
SCP-6000 is an eight by eight pillar that seemingly goes up endlessly into the sky. 6000, has different stages per hundred feet up that effects the health of any species that ends up inside.
