Full Metal Ghost: Strain History and Identification

By The Spore Source · Updated September 26, 2026

Intended use. Our Full Metal Ghost spore syringes are sold for microscopy, taxonomy and educational use only. This guide covers the strain’s history, what is and is not known about its parents, and what can be said about its spores. It does not cover cultivation, effects, potency or dosing, and we do not answer questions about them.

In this guide

• What the Full Metal Ghost strain is
• When it appeared and who released it
• What is known about its parents
• What can be said about its look and its spores
• What is still undocumented
• Legal status of Full Metal Ghost spores
• Frequently asked questions
• Sources

What the Full Metal Ghost strain is

Full Metal Ghost is a strain name, not a species. The mushroom is Psilocybe cubensis, the same species as Golden Teacher, Penis Envy and every other strain in a spore catalog. A strain is a line of that species that someone selected and kept going, and its name is informal. No registry, type specimen or DNA test certifies a syringe as the genuine version of any named strain, and a 2025 review in the Journal of Fungi noted that almost everything known about named cubensis strains comes from community reports rather than academic work.

That matters more than usual for the Full Metal Ghost strain, because it is one of the newer names in the hobby. It dates from the 2020s, it traces to a single breeder, and very little has been written about it outside of photos and short listings. This guide sticks to what at least two separate sources agree on and says plainly where the record runs out.

When it appeared and who released it

Every source we found credits the strain to the breeder Mycotrophic. The earliest public mention we could date is a hobbyist’s TikTok video posted in May 2023 that called Full Metal Ghost “the newest genetic release by Mycotrophic.” Shroomok, a community strain database, also credits the strain to Mycotrophic. In February 2024, High Times featured the strain in a photo post, gave its nickname as FMG and credited the genetics to Mycotrophic.

Those three sources agree on the breeder and put the strain in circulation by spring 2023. None of them gives the year the cross was made, and Mycotrophic has not published a history of its own that we could find. The name has no published explanation either.

What is known about its parents

Mycotrophic has not published the parents of Full Metal Ghost. A parent pair does circulate in online listings, but we found it in only one independent source. That is not enough under our two-source rule, so this guide does not name the parents. We will add them if the breeder or a second reliable account confirms them.

The name does not settle the question. Another strain in the hobby is also called Ghost: TAT Ghost, an albino selection from True Albino Teacher, the all-white line a hobbyist isolated from Golden Teacher in the late 2010s. Our Jack Frost guide covers that family. A word shared by two strain names does not show that one descends from the other.

What can be said about its look and its spores

We found no detailed description of the Full Metal Ghost fruit body that two independent sources agree on. Grower photos exist, but a photo of one specimen is not a description of a strain, so this guide does not list cap colors or shapes.

The spore color is also undocumented. Nobody has published a careful description of what color Full Metal Ghost spores are, how much pigment they carry, or whether that varies from one syringe to the next. If you look at them, compare a drop against a fully pigmented strain such as Golden Teacher. Pigmented cubensis spores are smooth, thick-walled and subellipsoid, with a germ pore at one end, purple-brown one at a time and about 11–17 by 7–11 micrometers. Pale spores keep the same shape and size and lose most of their color, which makes them harder to see in the barrel and on the slide. Our guide to albino and leucistic mushrooms explains how pigment shows up in spores.

What is still undocumented

• The breeder’s own account. Mycotrophic has not published the parentage, the year of the cross or the reason for the name in any source we could find.
• The spore color. No reliable description exists, so the question stays open until someone documents it.
• The genetics. No lab has sequenced Full Metal Ghost. A 2023 genome study in Current Biology found that cultivated cubensis lines descend from very few founders and are highly inbred, and it passed on an earlier finding that strains sold under the same name by different vendors were often not genetically the same.

We will update this page if the breeder or a reliable source fills in any of these gaps.

Legal status of Full Metal Ghost spores

Full Metal Ghost spores contain no psilocybin or psilocin, so under federal law and the law of 46 states they are not a controlled substance; the DEA confirmed the federal position in writing in January 2024. California and Florida restrict spores, Georgia and Idaho ban them, and we do not ship Psilocybe spores to those four states. Germinating spores is illegal under federal law everywhere. Our state-by-state legal guide has every statute.

Frequently asked questions

What is the Full Metal Ghost strain?

It is a named line of Psilocybe cubensis released by the breeder Mycotrophic and in circulation by May 2023. It is often called FMG.

What are the parents of Full Metal Ghost?

They have not been confirmed. The breeder has not published them, and we found the parent pair that circulates online in only one independent source, so we do not list it.

Who made Full Metal Ghost?

Every source we found credits the breeder Mycotrophic. The year the cross was made has not been published.

Is Full Metal Ghost an albino strain?

That has not been documented. No reliable source says whether the line is albino or describes the color of its spores.

Why is Full Metal Ghost considered rare?

It is a recent strain from a single breeder, and far fewer sources cover it than cover older names like Golden Teacher. Our guide to rare cubensis strains covers other less common lines.

Are Full Metal Ghost spores legal?

Yes, for microscopy, in 46 states. They are not legal in California, Florida, Georgia or Idaho, and we do not ship to those states.

Do you sell Full Metal Ghost spores?

Yes. Our Full Metal Ghost spore syringe is a 10 cc syringe, with a sterile needle and a 30-day warranty, sold for microscopy and taxonomy use only.

Sources

• Swampfoxfungi, TikTok video posted May 13, 2023 (not linked), describing Full Metal Ghost as “the newest genetic release by Mycotrophic.”
• High Times, #MacroMonday post on X, February 26, 2024 (not linked), naming the strain Full Metal Ghost “a.k.a. FMG” with genetics from Mycotrophic.
• Shroomok strain database, Full Metal Ghost entry (not linked), on the Mycotrophic credit.
• Wumbo Genetics, “Strain Guide: A History of Strains Grown and Documented” (not linked), describing Ghost as an isolation of True Albino Teacher.
• Shroomery forum archive: thread “Tat True Abino Teachers” (#26108959, July 2019) and thread #26643468 (December 2020), on Jik Fibs’s isolation of True Albino Teacher from Golden Teacher; both are also cited in our Jack Frost guide.
• Kurzbaum E. et al. (2025). “Exploring Psilocybe cubensis Strains.” Journal of Fungi 11(2):99. PMC11856550
• McTaggart A.R. et al. (2023). “Domestication through clandestine cultivation constrained genetic diversity in magic mushrooms relative to naturalized populations.” Current Biology. doi:10.1016/j.cub.2023.10.059
• DEA Diversion Control Division letter on the status of spores (January 2, 2024). PDF