Top Surgery Cases

Read along with us as we share our exceptional surgery cases!

Lemon

Lemon is a ranchu goldfish who was adopted with a slight oral deformity. Once day, when going after a large pellet, one side of her mouth luxated and obstructed her oral cavity. Dr. Sanders was able to correct the injury with a few well-placed sutures and Lemon was able to recover. Read more about her story here.

Rocky

We don’t know why he did it, but Rocky, a shovelnose catfish, decided that the rocks at the bottom of his tank looked particularly tasty. He ended up eating almost a pound of them and they got stuck in his stomach. Dr. Sanders performed surgery to open the stomach and remove the rocks. Read more about Rocky here.

Sparky

Our buddy Sparky presented with a HUGE tumor on his eye. Rather than trying to cut the tumor away from the delicate cornea, Dr. Sanders elected to remove the eye. Sparky healed up great and you can never even tell an eye was there to begin with. Read his full story here.

Want to watch some fun surgery videos? Check out our YouTube channel.

This koi had a coelomic tumor that required invasive surgery to remove.
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Fish Surgery Diagnostics

How do fish veterinarians decide when it’s time for a fish to go under the knife? Surgery can be very beneficial for fish when it is warranted.

Water Quality Testing

Prior to any surgery, a veterinarian MUST test the water quality. If the water quality is off in any way, recovery after surgery will be hindered. Corrections to water quality must be made prior to any procedure.

Radiographs

In dealing with structures including and next to bones and the swim bladder, radiographs, commonly called “x-rays,” provide great diagnostic info. These are very handy to see if there is any air where it shouldn’t be and if any structures are not in the correct place. For soft tissue, we need…

Ultrasound

This tool is one of the most beneficial to evaluate internal structures in fish. For koi, it is how we are able to see gonadal sarcomas and how extensive they are. A small tumor is much easier to operate on that a large one.

Bloodwork

Unlike many other pet species, bloodwork is not very useful in many species of pet fish. Reference ranges have been established, but some are too wide, and vary based on water quality and genetics. For surgical procedures, a PCV (packed cell volume) is helpful to understand how much blood a fish loses during a procedure.

How Do Fish Undergo Surgery?

How Do Fish Undergo Surgery?

One of the most common questions we get asked is how do fish undergo surgery? Yes, even surgical treatment is available to fish. It can be a simple lump removal all the way through to a full open abdomen procedure. It is simply amazing how well a fish improve from a simple corrective surgery.

Are they awake for the procedure?

Absolutely not! Just like people, cats and dogs are sedated for surgery, so are fish. Rather than using an aerosolized anesthetic, fish are sedated using a water-based anesthetic. Our office uses a compound called MS-222 or Tricaine-S (tricaine methanesulfonate). Other fish vets may use eugenol or clove oil. These compounds produce a safe plane of anesthesia to operate with the fish happily in dreamland. Recovery using clean water usually occurs within 10-30 minutes.

Surgery on the stomach of a shovelnose catfish

Are the fish underwater when you operate?

No again. For simple external procedures, the fish will lie on one side with the surgical site up in the air. Usually we have an assistant or net hold the fish partially submerged. For open abdomen procedures, we have a specially crafted, acrylic V-shape that fits over a 10-gallon aquarium. An aquarium pump moves water from the reservoir below, through a tube to the fish’s mouth, which then flows over their gills and back down. It is a very simple closed circulation system that works extremely well. (Modified through the amazing work of Drs. Harms & Lewbart). There is one person assigned to this job for the entire surgery and monitors the fish’s anesthetic depth through gill movement and heart rate.

Our specialized surgical rig

What is the craziest surgery you have ever done?

Well, we do a lot of procedures that are very odd for the general veterinary practitioner. Given the specialty of our service, we see nothing but “odd” cases. Some of our favorites include our fish friends Rocky, Lemon and Sparky. Read all about their cases here.

Watch some of our procedures on our YouTube site: Eyeball Removal, Abdominal Tumor Removal

Have more questions? Check out our Fish Surgery FAQ