Diana Walstad's Books and Articles

Recently, I crossed my Rainbow guppies with Santa Maria Endlers to increase their fitness.

The Monarch butterfly requires the Butterfly weed and other milkweeds.

The two tanks I set up a month ago for the big Expo on May 2 are ready for their road trip to Charlotte, NC to be displayed and then auctioned off.

In preparing my tanks for the May 2, 2026 Expo (See previous post), I noticed that the plants in the tank with a potting soil substrate were not growing as enthusiastically as plants in the other tank, which were in garden soil.

Preliminary results from crossing my Rainbow guppies with Endlers (Santa Maria strain) turned out much better than I expected, especially for the male Rainbow X Endler female matings.

For several years, I have been using my new easy “dish method” for hatching brine shrimp eggs.

In November 2025, I gave a talk to the Bucks Co.

My visit to Spring Hill, Florida to give talk for the PASCO aquarium club on July 12, 2025 was a resounding success.

Recently, I did an interview conducted by Scott Wells, a cichlid authority with an informative website The Cichlid Stage.

I have now put the entire contents of my 2017 book Family History (1860-1950) of a Doctor’s Daughter onto this website.

My new article ‘Outcrossing: The Rare Male Advantage’ discusses how the female guppy’s decided preference for novel males can help in outcrossing.