Hello author. Let's begin.
I lost interest in this article after the special containment procedures, and I actually stopped reading halfway through the description. Author, there are numerous formatting, tonal, and length issues with your piece and I would seriously recommend that you get familiar with both other SCP articles and this guide on how to write an SCP article. These are some examples.
Yet friendly and obedient, its sudden mood swings and ferocious appetite keeps SCP-3220 from freely wandering the facility unlike SCP-999. SCP-3220 is free to patrol during a Full Day or at night.
This portion does not have clinical tone. "Sudden mood swings and ferocious appetite" is a phrase no detached scientist would ever say. A scientist might say "unpredictable temperament significant appetite." The cross-link to SCP-999 does not really enhance your piece, but reads more like an attempt to ride on the success of another blob like SCP.
SCP-3220 is a gumdrop-shaped organism from unknown origins. Its bottom is slightly curved, not flat. It has a body radius of 44cm, length of 13cm, with a height of 15cm (size of a teapot). SCP-3220 weighs 1.81 kg (4 lbs). Its body structure seems that to be of transparent gelatin with two black beady eyes on one side; these eyes can see through the dark.
Describing every single part of your SCP is really unfriendly to the reader's capacity to create images, and nobody's really going to pull out a ruler to figure out exactly how big this is. A foundation scientist can and will just state "small" or "big" at least, and offer a comparison or single measurement at most. Imperial units like pounds shouldn't appear at all and adding it to only the weight but not to any other measurement is inconsistent.
SCP-3220's nubs can penetrate anything. It does this by quickly stretching with a record speed of 965.6km/s. Materials broken: a ball of spider silk, nano-kevlar, diamond, graphene and a British Challenger 2 tank.
SCP-3220 can survive anything when solidified or its normal state. Withstood bullets, jackhammers, lazers, nukes and the pressure of 222,500 tons. SCP-3220 can also survive extreme temperatures and outer space.
Given that you also state that it can cure any illness, this is quickly becoming an indestructible and overpowered SCP. Neither tends to do well as a defining characteristic and SCPs that are one of these have a tough time surviving the main-site.
This reads like a cross between 682 and 999. The latter is more concerning since there are cross-links to it and almost word-for-word borrows from that article (protective of humans during a breach, the Foundation is considering marketing the blob's material). I recommend that you first get intimate with the writing style and standards expected on this site first. After that, I recommend bringing this concept to the ideas and brainstorming forum. Make a brief paragraph description of the SCP you want to write and make a post there so people can help you bring out interesting aspects, and trim out boring ones. Good luck!
