Professional Herpetoculture for the Pet Trade

About Us

About VMS

VMS is owned and operated by Sean Niland.

Sean has been involved in herpetoculture and the pet industry since 1977. In 1990, we focused on producing quality reptiles at reasonable prices for wholesale distribution to pet retailers. We sold only to legitimate licensed dealers; we did not sell our animals to individuals. This single-minded approach allowed us to concentrate on volume production of many species while protecting the pet retailers' business as well.

While this concept worked well initially, we began to discover that few retailers could provide accurate care information to the customer. Indeed, many seemed unable to care for our animals properly themselves. As a result, we began offering our animals directly to retail customers via the internet in 2000. This proved so successful that today we seldom wholesale animals at all, they almost all sell at retail. Retail customers can enjoy receiving the same quality animals we are known for, as well as getting first pick on 'special' animals. Additionally, retail customers receive the full benefit of our skills and knowledge to ensure their success with the reptile of choice.

About Sean Niland

Sean's interest in reptiles was rekindled in 1989. At the time, Sean had not kept reptiles for a year or two. Even so, cleaning out the savings account to purchase the first known amelanistic Prairie Rattlesnake (Crotalus viridis viridis) was done without a moments hesitation! It was an animal he had always hoped to field collect, but being first to breed it would have to suffice. With his interest rekindled, the house quickly began to fill with cages and herps of several kinds.

Having fulfilled management roles at retail, wholesale, and distributor levels, Sean has frequently been called upon to assist in legislative issues surrounding herpetoculture and the pet trade. Having kept just about every snake specie present in north American collections over the last three decades, his favorite will always remain the Cornsnake.

In 2004 Sean constructed the current home and VMS breeding facility. Other interests he pursues are mountain biking, hiking, bird-watching, artifact-hunting, and snow-shoeing. Sean also enjoys fly-fishing for trout in the local streams and rivers.

What does VMS stand for? We get asked that a lot. Usually Sean quips that it stands for "Very Many Snakes". However, the truth is a little stranger:

While field collecting in the summer of 1989 Sean and Monica Niland, along with friend Vern Veer, discussed the concept of a full-scale breeding facility to supply wholesale reptiles to the pet trade. Improbable ideas often sound plausible in the middle of the night on a dreary road through the desert, vanishing as quickly as bats at sunrise. But this one struck a chord with Sean. Vern, now pursuing a successful career at the Denver Zoological Gardens, is not involved in the business, but is still the 'V' in VMS. Although Sean and Monica divorced after 23 years of marriage, and she is no longer involved in the business, Monica remains the 'M' in VMS.

PS - After four long years of waiting, the amelanistic Prairie Rattlesnake produced a litter of babies. All were female, like the original albino. Three years and three litters later, the results were the same. Sean realized that even if a male were born the following year it would still take four years to reach maturity. This would be an investment of eleven years before a single albino was ever produced! Fearing pending changes in wildlife laws, and wondering if he possessed enough stamina to see it through, Sean relented and sold the project off. Moral of the story: It's a lot of work bringing some of these projects to fruition - so don't be surprised at breeders asking high prices for the newest color morphs or rare animals. They are simply trying to recoup their investment.

Here's some interesting shots of some of the things we see and do around here:

Sean, holding one of his friends - a Rainbow Trout taken and released on the South Platte River at Deckers.

RJ the Wonder Cat

This guy is like no other on earth.

An elk herd is in the foreground of this view  taken from the front deck.

A mountain sunset, another of the many reasons I love it here!

Avid bird-watchers, Sean took this photo of a Cackling Cackling Goose (B. h. minima); the first photographically documented occurrence of the subspecie in the state.

Hummingbirds are always draining the feeders! Broad-Tailed, Rufous and Calliope Hummers frequent the area.

Mule Deer are always draining the bird-baths! But they have their own charms...

This guy shows up each evening to drain a bucket of corn!

Bighorn Sheep are common along the nearby canyons.

Evening Grosbeaks are common on the VMS property.

Sharp-Shinned Hawks, like this juvenile, often hunt birds on our property.

Bobcats are very common. This one posed along a road near the house. I never seem to have the right camera lens on...

This flower is the Columbine, Colorado's state flower.

Each fall, the Aspen trees color up, and drives up nearby roads turn into scenes from postcards.

The contrast between golden Aspens and dark green Pines never ceases to catch my eye.

The perfect place for a relaxing hike.

When the Aspens begin to color up, the deer form into larger herds.

At the same time, the Elk begin to form up into herds as the rut starts.

Playing around with a new lens...

Every beginning photographer simply has to take one of these shots.

Sean at a trade show. Why are these things always so tiring? I look exhausted.

VMS employees (RJ & Mimi) are useless. Here one sleeps on the job while the other is below acting as a lookout.

Sean riding his ATV on mountain trails just minutes from home.

A view of the Hayman wildfire from the back bedroom of my previous home. It came close!

About our website

Our site has been optimized for viewing at a screen resolution of 1024x768 or higher. Other resolutions will work, but results may vary. The site has been optimized for Internet Explorer 6.0 or higher, Apple Safari, Google Chrome, and Mozilla Firefox 3.5 or higher. Other browsers may yield varying results. One word about browsers - If you are one of the 7% of folks still using explorer 6, do yourself a favor and upgrade, that browser is terrible. It causes web designers more nightmares than you would believe possible. The newer versions are better, faster, and best of all are available free at

All XHTML/CSS coding by Sean Niland, VMS Professional Herpetoculture. Any errors or problems associated with it are most likely my fault. After all, I did teach myself to do this. Too cheap to even buy a book! (OK I did finally buy a book, but I held out for years.)

All graphics (except animations) by Sean Niland, VMS Professional Herpetoculture. Any yucky stuff here is my fault again. Bought one of those new-fangled digital camera thingies and had to take it back to see how to put the film in it.... While today we shoot a Nikon D-series DSLR, many of the older (and blurrier) photos on the site may date all the way back to the days when you actually inserted a floppy disk into the camera to hold the photos. Someday perhaps we'll find the time to shoot new pics of everything that needs it...