Ghost Shrimp Feeding: What They'll Actually Eat, Including Each Other
Ghost shrimp feeding is genuinely easy, they'll scavenge most of their own food, but the one thing worth understanding upfront is that they're an opportunistic omnivore, not a pure algae eater, and that includes an occasional taste for smaller or freshly molted tankmates.
Ghost Shrimp Feeding: What They'll Actually Eat, Including Each Other
Ghost shrimp feeding is about as low-effort as this site covers, they'll scavenge a real share of their own food, but there's one nuance worth knowing upfront: this is an opportunistic omnivore, not a dedicated algae eater, and "opportunistic" extends to smaller or freshly molted tankmates. For the rest of their care needs, see our complete Ghost shrimp care guide.
The Staple Diet: Scavenger First, Algae Eater Second
Animal Diversity Web describes the wild diet plainly: algae, both diatoms and green algae, along with vascular plants, detritus, aquatic insects, and other benthic organic matter. Wikipedia adds a behavioral detail worth knowing if you're wondering why you don't see much daytime foraging: this species is largely nocturnal, staying hidden among vegetation by day and emerging at night to feed on plankton, including specific diatom genera like Fragilaria and Navicula.
That's a genuinely broad, opportunistic diet, and sources disagree slightly on how much of it is algae specifically. Quality Marine is direct about it: ghost shrimp "are not known for eating algae, but will do an excellent job cleaning up the detritus around the tank." Other keepers report them grazing soft brush algae readily enough. The honest middle ground is that ghost shrimp are a genuine all-purpose detritivore and scavenger first, and an algae eater only incidentally, useful cleanup crew, but not a substitute for a dedicated algae specialist like Amano shrimp if that's the specific problem you're solving for.
Ghost shrimp are nocturnal foragers, more active hunting for food at night than during the day, and their near-total transparency is part of how they get away with it. It's genuinely one of the more interesting things to watch with a flashlight after dark, a translucent shrimp working its way across the substrate, picking through diatoms and detritus that a daytime glance at the tank would never reveal was even there.
Feeding Frequency and Portions
A small amount every day or two is plenty for a modestly stocked tank. Offer a sinking wafer broken into smaller pieces, or a few pellets, and let scavenging cover the rest. Since ghost shrimp forage continuously rather than eating one big meal, there's little benefit to a precise multi-times-a-day schedule the way a schooling fish needs, small and frequent beats large and occasional here. Remove anything still uneaten after a few hours to keep it from fouling the water.
The Predation Nuance: Smaller Tankmates and Their Own Kind
This is the part of ghost shrimp feeding that's easy to miss if you only think of them as a peaceful cleanup crew. The Aquarium Guide is direct about the risk to smaller shrimp species kept alongside them: "Ghost shrimp often eat smaller fish and other shrimp," and specifically that they'll "usually bully cherry and the baby shrimp." If you're weighing a cherry shrimp and ghost shrimp combination, that's a real compatibility risk to plan around, not a hypothetical one.
The same risk applies within a pure ghost shrimp colony. BiologyInsights explains why freshly molted shrimp specifically get targeted: a shrimp that's just shed its exoskeleton is left "soft, defenseless" for "several hours or even days" while the new shell hardens, immobile, unprotected, and, to a hungry tankmate, "a rich source of protein and the calcium carbonate needed for the aggressor's own shell hardening." It's a real evolutionary logic, not random aggression.
The prevention is straightforward and doubles as good general husbandry: dense hiding cover so a molting shrimp has somewhere to disappear, and "sufficient and frequent feeding" so a well-fed colony has less motivation to target a vulnerable tankmate in the first place, exactly the diet this guide already covers. Our tank setup guide covers the hiding-spot side in more depth, and our health issues guide covers molting problems from the shrimp's own side of things.
Foods to Avoid
Excess protein-heavy feeding, low-quality live foods from unclear sources, which can introduce parasites, and simple overfeeding are the main risks. Uneaten food decays and degrades water quality quickly in a small tank, and a colony that's already scavenging effectively rarely needs much added on top.
Supplementation
None specific is required. A varied diet, mostly self-sourced scavenging plus an occasional sinking wafer, covers nutrition without a separate vitamin or mineral product, and it includes enough calcium to support the molting process covered in our health issues guide.
For the rest of their setup and cost picture, see our cost guide, handling guide, and tank setup guide. The Ghost shrimp encyclopedia profile has the full natural history, or browse the rest of our Invertebrates care guide category.
Sources & Further Reading
❓ Frequently Asked Questions
What do ghost shrimp eat?
Almost anything organic they can find. Animal Diversity Web lists algae, vascular plant matter, detritus, aquatic insects, and other benthic organic matter as their natural diet. In a tank, that translates to leftover fish food, biofilm, decaying plant matter, and a sinking wafer or pellet as a deliberate supplement.
How often should I feed ghost shrimp?
A small amount every day or two is plenty for a modestly stocked tank, since ghost shrimp scavenge a meaningful share of their food on their own. Offer only what a sinking wafer or a few pellets provide, and remove anything still sitting on the substrate after a few hours.
Do ghost shrimp eat algae?
Some, but they're better described as an all-purpose detritivore than a dedicated algae specialist. Quality Marine specifically notes they're 'not known for eating algae' but do 'an excellent job cleaning up the detritus around the tank,' while other sources report them grazing on soft brush algae too. Either way, don't count on them to control a serious algae problem the way an Amano shrimp would.
Will ghost shrimp eat other shrimp or each other?
Yes, this is a real and documented risk, not a rare exception. They're opportunistic enough to prey on smaller fish and smaller shrimp, and freshly molted individuals of any species, including their own, are especially vulnerable since a new shell takes hours to days to harden. Dense hiding cover and generous, consistent feeding both measurably reduce how often it happens.
Do ghost shrimp need vitamin or mineral supplements?
No dedicated supplement is required. A varied diet, mostly self-sourced scavenging plus an occasional sinking wafer with some protein and plant content built in, covers their nutritional needs, including the calcium that supports healthy molting.
🛒 Recommended Gear
As an Amazon Associate, we earn from qualifying purchases through the links above - at no extra cost to you.
Written by Mike
Mike is the founder of Beastly Facts and a lifelong reptile enthusiast. He shares his home with Dex, a bearded dragon with strong opinions about crickets and basking schedules. Mike writes in-depth care guides, animal facts, and the occasional short story about life with exotic pets.
More about Mike →Comments
No comments yet - be the first!
