How to Culture Rotifers: Batch Culturing Protocol

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Culturing rotifers at home is fairly easy to do.  Rotifers are a great food source for newly hatched fish larvae and for some filter feeding invertebrates.  Ironically, the rotifers organism itself provides very little nutritional value to the animals that eat them. It is the content of their guts (the …

Albert B Ulrich IIIHow to Culture Rotifers: Batch Culturing Protocol

Rotifer Batch Cultures

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Rotifer Batch Cultures Culturing rotifers with a batch culture technique is akin to a manufacturing process.  Instead of focusing on creating a stable environment to keep a relatively low-density culture thriving over a long period of time, the objective of a batch-produced culture is to maximize the yield of the …

Albert B Ulrich IIIRotifer Batch Cultures

Rotifer Cultures: Continuous Rotifer Culture and Production

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Rotifer Cultures: Continuous Rotifer Culture and Production There are two popular methods of culturing rotifers—continuous culturing and batch culturing.  Each method has its own pros and cons, but the next two posts should help you decide which method is right for you.  The focus of this article is to describe …

Albert B Ulrich IIIRotifer Cultures: Continuous Rotifer Culture and Production
Rotifer culture equipment

Equipment Needed to Culture Saltwater Rotifers

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The first step to culturing saltwater rotifers at home is to obtain a starter culture.  If you can’t find a hobbyist (or breeder) growing rotifers locally, you can find them online—just type ‘rotifer cultures’ or ‘live rotifers’ into the GOOGLE search bar on the bottom left margin of this page, and …

Albert B Ulrich IIIEquipment Needed to Culture Saltwater Rotifers

Culturing Saltwater Rotifers–Introduction

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Culturing Saltwater Rotifers: How to Culture Live Rotifers at Home for Your Saltwater Aquarium Culturing rotifers is easy to do at home. In order to get started, you have to obtain a starter culture. If you don’t find automatic success with your homegrown rotifer culture, don’t worry. It took me a …

Albert B Ulrich IIICulturing Saltwater Rotifers–Introduction

Clownfish Larvae Death

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Just wanted to complete the most recent clownfish spawning blog and post the (dismal) results.  Over the first two days post-hatch (almost sounds Shakespearean…oh, no, wait, the phrase I’m thinking of is ‘post-haste’, but even if not Shakespearean, the story does end in tragedy) the handful of clownfish larvae that …

Albert B Ulrich IIIClownfish Larvae Death

Clownfish Eggs Hatch

Albert B Ulrich III Clownfish Breeding, Fish Breeding, Uncategorized 1 Comment

So the clownfish (amphiprion ocellaris) eggs hatched last night, after 8 days of incubuation.  The clownfish eggs were initially laid on the glass of my display tank (75 gallon mixed reef).   In my basement, I had a 20 gallon black round tub filled (to about 2-3 gallons) with water from the …

Albert B Ulrich IIIClownfish Eggs Hatch

Clownfish Spawning Day Eight Pre-hatch

Albert B Ulrich III Clownfish Breeding, Fish Breeding Leave a Comment

Here are the photos of the clownfish eggs from tonight, prior to hatch.   Larvae look highly developed through the egg casing. Amazing how strongly the eggs are attached to the glass.  Both the male and female reacted to my presence today and were thrashing about next to the nest.  The …

Albert B Ulrich IIIClownfish Spawning Day Eight Pre-hatch

Clownfish Spawning Days 6 and 7

Albert B Ulrich III Clownfish Breeding, Uncategorized 1 Comment

Here are the pictures for Day 6 and Day 7:   By Day six, approximately 30% of the eggs had shiny, reflective eyes.  By Day 7:, the eggs appear ‘spaced out’ along the glass wall, shape seems almost elongated, tiny reflective eyes seen in just about every egg.  Shimmering/reflective property …

Albert B Ulrich IIIClownfish Spawning Days 6 and 7

Clownfish Spawning Day 5

Albert B Ulrich III Clownfish Breeding, Fish Breeding Leave a Comment

Day 5: Now, approximately 5% (or less) of the clownfish eggs have developed eyes.  As the clownfish eggs sway in the current gently, the eyes are visible in a few.  It does appear that the spawn has been thinned out a bit by the male.  Hatching should commence in about three …

Albert B Ulrich IIIClownfish Spawning Day 5