A demonstration area with ponds showcases fish and plants at Tucson Koi and Water Gardens.
A lily pad with a blossom is one of the types of water plants that make a pond a home for koi.
"I've found ponds very tranquil, especially living in the desert," says Dr. Santiago Tucson, koi collector.
Stone statues and hardscape construction are also available at the koi and water-plant shop.
Cardiologist Lee Goldberg was having a tough time getting a koi pond installed in his backyard.
Koi fish swim in Martha and Dan Cover's pond among calla lilies. The pond on the northwest side is part of the Parade of Ponds.
Several flowering plants sit in immersed pots in the Covers' pond. The pots protect the plants from the fish, who like to eat the roots. The koi pond provides much joy to the couple.
"Fish completes an ecological cycle," says Nathan Novak, owner of Canyon Pondscapes, which helped install the Covers' pond. Some fish like to pull up plants and eat the roots.
Water circulation helps keep algae at bay in the Covers' pond, which is featured in the koi pond tour May 1-2.
Nobody picks up the poop left by about 200 pets that Martha and
Dan Cover keep in their backyard. That's because the waste from
their koi keeps plants healthy and lush.