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Fresh Water Invertebrates

Welcome to our Fresh Water Invertebrates Page. Listed below are the different kinds of plankton we carry.


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Freshwater Amphipods
SKU: FWamph1
These amphipods (hyallela azteca) are easy to culture and are an excellent food for many types of fish. They like to hide in vegetation and muck, and feed on detritus.
Our price: $14.95
Market price: $21.95 save 32%
Ghost Shrimp
SKU: ppalu1
These fresh water ghost shrimp get up to 1.5 inches. They are great at foraging on detritus and algae, however will make a quick meal for any hungry fish. They are easy to keep and eat flake food. They come in groups of 10 and 20.
Our price: $17.95
Insect Mix
SKU: Insix1
This mix contains at least 20 insects made up of a variety of species including dragon fly and damsel fly nymphs, water bugs, water scorpions, and water boatman bugs. These are great for classroom observation, and science fair experiments.
Our price: $23.95
Microworms: Nematodes
SKU: mw100
These nematodes are great for feeding tiny fish. they are several millimeters long and are easy to culture in small tupperwares.
Our price: $12.95
Mosquito Larvae
SKU: mos1
These mosquito larvae are great fish food for animals such as smaller bream and sunfish, various darters, and minnows! They can also be used in science experiments. Closed containers recommended. Don't let them loose when they turn into adults! Purchase them in groups of 100, 200, or 500.
Our price: $18.95
Market price: $20.95 save 10%
Plankton Feed
SKU: pf1
This plankton feed comes in powder form. Simply add the correct amount of water and feed according to the instructions. We make this ourselves and have been using it to feed all of our rotifers, copepods, daphnia, tubifex worms, and amphipods. This plankton feed is very forgiving, as it is not too oily and contains a nice blend of plant and protein matter. Feeding is subjective to population and volume of water. 1/2 teaspoon of plankton feed and water to 1 gallon of culture water is a good start. Do not cloud the water. If the water stays cloudy, that means that you are feeding too much. The powder stays the freshest in the refrigerator, and after water is added, refrigeration is required.

All plankton feed items now include a mixing bottle and eye dropper for feeding!
Our price: $4.95
Plankton mix
SKU: pmix100
Our plankton mix includes a mix of fresh water planktonic orangisms including Ostracods, daphnia, rotifers, ceriodaphnia, copepods, and amphipods. The pmix100 is 100 mixed organisms. The pmix300 is 300 mixed organisms. The pmix1000 is 1000 mixed organisms.
Our price: $18.95
Plankton Start Up Kits
SKU: psuk1
These kits are an excellent buy for a hobbyist starting out. Each kit comes with instructions, a 5ml pipette with tubing, a 55 micron sieve, and a plankton feed kit. You can order them with a variety of different organisms.
Our price: $21.95
SKU: snail1
These snails are a great addition to any aquarium. They will feed on algae and are interesting to watch. Specify if you want 4 Large apple snails, 10 mixed snails (including apple snails), or 10 ramshorn snails.
Our price: $14.95
Tubifex Worms (Red Worms)
SKU: rw100
These tubifex worms can grow up to an inch. They are great for feeding small fish. They come in lots of 100
Our price: $17.95
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