hatchery operations

Fish Growth Inhibition

Photo: A 55-gallon vat with 144 adult male cichlids 5+" long, showing that our system allows crowding without growth inhibition. See below for the possible reasons. Recently, a hobbyist messaged me: “I’ve heard that fish release a hormone that will slow the growth of other similar fish. Do you ... Read More

Bryozoan, To Be or Not To Be…

Photo: A freshwater sponge (Dosilia radiospiculata) growing on aquaculture mesh in one of our vats.   This blog is an update of another blog: https://goliadfarms.com/a-bryozoan-lives-in-the-greenhouses/. Read it for background. Way back in pre-Coronavirus ages, October 2019, I wrote ... Read More

Gold OB Peacock

Photo: A breeder male Gold OB Peacock in a five-gallon bucket as he is being processed before being moved back into his breeding colony.   WARNING!!! This is a rather long and geeky fish blog for my fishkeeping friends. I decided to kill two birds (or fish, whatever!) with one stone by 1) ... Read More

Update on Scuds (Shrimp, not Missiles!)

Photo by Matt Hill of EcoAnalysts, Inc., our go-to expert on invertebrate identification, of one of our male scuds. One of the livefoods for fish we raise in our hatchery is scuds, also known as Gammarus. We recently sort of got our scuds identified. See this blog for details: Update on Gammarus ... Read More

Litter Worm Update

Litter Worm Update Photo: A group of litter worms (Bimastos heimburgeri) in one of our compost piles. I previously blogged about finally finding a lab to identify our scuds, litter worms, and vat worms. For information about the scud identification and some background see these ... Read More

A Possible Female Guppy/Molly Hybrid

Photo: A possible Poecilia reticulata (guppy) x Poecilia mexicana, Campeche (molly) hybrid in front of a grid to show size. We found the fish in the above photograph January 15th of this year. Before I describe the fish and argue why I think it might be a hybrid, let me give you some ... Read More

Teas, Fish, and Chickens

Photo: Greenhouses without their covers immediately after Hurricane Harvey. Note the trees in the background stripped of their leaves by the hurricane force winds.   So, what do tea, fish, and chickens have in common? This blog will tie them together. Our farm and hatchery have had two ... Read More

Raising Mosquito Larvae for Fish Food

Photo: A mosquito larvae culture system to raise live foods for fish. I originally wrote this as an article in our monthly Newsletter (now dormant, but likely to be revived). I’ve made some edits, but it’s largely the same information. Also, it’s a timely blog since mosquito season will be ... Read More