We know you cherish your koi as they are like underwater puppies in this community. To ensure their safety we will test your water parameters (faucet and pond) before proceeding to make sure your koi do not experience extreme stress. The most common type of koi we encounter in MD, DC, and Northern Virginia are butterfly koi. These koi can be found all throughout pond and aquarium stores and have become popular due to their ease of breeding and hardiness. With that in mind, it is still important to minimize their stress while servicing your pond. Your fish will be safely relocated inside a lidded external holding tank and will be closely monitored during the job.