
A specialist estuary/coastal toadfish for brackish to marine setups, not a standard freshwater community fish.
Care at a Glance
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size above for the actual shipping size. Product-photo provenance and any image-specific limitations are stated on the listing.
Water Parameters
Batrachomoeus trispinosus
Three-spined Frogfish (Batrachomoeus trispinosus)
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A specialist estuary/coastal toadfish for brackish to marine setups, not a standard freshwater community fish.
Care at a Glance
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size above for the actual shipping size. Product-photo provenance and any image-specific limitations are stated on the listing.
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Water Parameters
Maintain these water conditions for optimal health and vibrant colors
Three-spined Frogfish overview
Three-spined Frogfish (Batrachomoeus trispinosus) is an unusual toadfish from estuary, mangrove and coastal habitats. Despite the common name, this is not a planted-community freshwater fish. It is a specialist ambush predator for brackish to marine-style aquariums.
Quick facts
| Sale size | 5-6 cm on this variant; larger size variants may appear on the parent listing |
|---|---|
| Adult size | Can exceed 20 cm, so plan a spacious adult aquarium |
| Water | Hard, alkaline brackish to marine conditions; stable salinity is essential |
| Temperament | Predatory, sedentary and best kept with robust, carefully chosen tank mates |
| Diet | Meaty foods such as shrimp, mussel, squid, krill and fish flesh |
Care notes
This fish spends much of its time camouflaged on the bottom, waiting for food to pass. Use a mature aquarium with sand, caves, rockwork and open feeding areas. Avoid small fish or ornamental invertebrates, which may be eaten.
Because this species comes from estuary and coastal habitats, long-term success depends on stable mineral-rich water and a keeper who is comfortable managing salinity, water quality and target feeding.
Ordering from Tropical Fish Co
Check the live stock selector before ordering because this specialist species is not always available. Livestock is packed for UK delivery by a licensed live-animal courier and covered by our Live Arrival Guarantee when the policy conditions are followed.
Customer Reviews
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What customers say about ordering from us
- 4 out of 5Verified buyer
I have a small group of long finned mountain minnows. So was delighted to be able to order ten of this variety to increase the genetics in my tank . The ones I recieved are healthy but it’s to early to give a verdict on wether they are of a long finned type since they are small currently.
Gordon Walker · 23 Sept 2026
- 5 out of 5Verified buyer
100% success travel and "installation". Pleased with quality of purchase. The Siamese fighter a bit "shy" so have not yet seen him at his best yet but looking good. Happy customer. GG
George E Garratt · 21 Sept 2026
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