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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Platinum Sterlet Acipenser Ruthenus 20cmPlatinum Sterlet Acipenser Ruthenus The smallest sturgeon species, Sterlet are naturally found in large rivers where they can enjoy the cool temperatures and high oxygen levels that they require. Unlike their larger cousins, they don't undertake extensive migrations and tend to dwell in deeper channels feeding on insect larvae, molluscs and other invertebrates. Young fish shelter in shallower water away from large predators. All sterlets in the UK
Platinum Sterlet Acipenser RuthenusThe smallest sturgeon species, Sterlet are naturally found in large rivers where they can enjoy the cool temperatures and high oxygen levels that they require. Unlike their larger cousins, they don't undertake extensive migrations and tend to dwell in deeper channels feeding on insect larvae, molluscs and other invertebrates. Young fish shelter in shallower water away from large predators.
All sterlets in the UK hobby are captive bred but they share the same preference for cool, flowing water with high oxygen levels. They have a shark-like swimming style and are very prone to getting tangled in blanketweed, often with fatal results. This means that a suitable pond needs to be large and uncluttered, with good filtration and strong water movement - conditions that are commonly found in koi ponds. The only snag is that sterlet don't have the same seasonal dietary demands, so they need feeding with a fairly high-protein specialised diet through the winter which may be a conflict with the needs of the koi. Orfe are perhaps the perfect companions for these fish as not only do they share the same water chemistry and temperature preferences, they share a susceptibility to chemicals found in treatments, so always check suitability before use.
Like koi, sterlet prefer hard water and keepers in soft water areas are advised to add buffers to increase KH levels and monitor these alongside the usual parameters such as ammonia and nitrite. As these conditions favour the growth of algae, an ultraviolet clarifier is usually an essential piece of equipment to maintain the clear water that allows you to appreciate your pets.
Currently the status of this species' native wild relatives is critical. As with any pet fish, it's important never to release sterlet into the wild where they can impact their wild kin.
Feeding
Carnivore that requires specialist sinking foods specifically formulated for Sturgeon/Sterlets, that are high in fish meal/shrimp meal protein and easily digestible. If other fish are present in the pond, always feed them their usual food first in order to keep them occupied, then offer the specialist sinking food to the Sterlets. This will help to prevent the other fish from greedily consuming all the Sturgeon/Sterlet food before it reaches the bottom. It is very important to ensure the Sterlets are not being outcompeted at feeding time, and equally important that they receive a specially tailored diet. As Sterlets have short guts with limited capacity, a number of small feeds per day is much more beneficial than one large feed, but do be careful not to overfeed. During the autumn/winter months, Sterlets will continue to feed down to 4 °C and it is important that they continue to receive small amounts of food (even when other fish in the pond aren't feeding) in order to prevent starvation. However, do remove any uneaten food promptly.
Shipping Notes
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Exchange/Return Notes
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4.2 ★★★★★
Based on 1233 reviews
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Product Reviews
★★★★★ 5
Quality choice for my dog
Size: Small
These are great, great quality and a super great price
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Small squeaky dog toy
Size: Small
My mini dachshunds love them, they fit in their mouth and they squeak🙂
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Reviewed in the United States on April 5, 2026
★★★★★ 5
This is a great ball for high energy dogs.
Color: Blue
I have a Belgian Malinois, so you can imagine the Maligator jaws. Just opened this today and let her play with it indoors. She LOVES IT. It wore her out and it’s a toy she can really stay focused on without needing me to throw or roll for her. It moves on its own! I supervised her play. I was hoping it was too big to get under the couch, but no. It goes right under it. I had to block off the gap so I didn’t have to keep getting it out from under for her. The outter “shell” is very durable! When she had resting moments, she chewed it pretty good - I could hear the material squeaking against her teeth. I was worried she was tearing it up, but nope! Not a mark on it. It’s easy to set up and operate. It needed charging before play. After hours of play, she was able to somehow unscrew the outter shell. This concerned me bc the smaller, inner ball mechanism came out but I saw it right away and was able to put it back together. So, make sure it’s screwed together tightly (which I thought I had done without breaking it) and check it from time to time to make sure it hasn’t loosened. This is a great ball for her incredible high energy drive. It gives her the work and fun play she needs to get tired, which I love. This toy is on the expensive end, but so far it’s worth it. Now we’ll see how long it lasts!
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Reviewed in the United States on October 7, 2025
★★★★★ 5
Love love it
Color: Blue
Best dog toy ever. I have a 1 year old boxer who is full of energy (understatement). This ball has provided more entertainment for us both than any dog toy I’ve ever purchased. Charge holds well and has a very resilient shell. I love it. Worth the price.
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Reviewed in the United States on May 23, 2026
★★★★★ 4
Great ball for limited entertainment. Replaceable outer shell is an amazing option!
Color: Blue, Color: Blue
Bought this for our 45lb, ball-obsessed Dutch shepherd/pit bull dog mix. I had one of these years ago with the hard shell and couldn’t be happier with the new foam shell.
The new foam shell is much quieter and while our dog might put holes in it with his teeth, he doesn’t seem to ever pull pieces off.
For engagement level, he found it VERY interesting at first and was scared to grab it, but once he got over that he started holding it in his mouth even when it shakes and just tries to keep it.
Isn’t the best for fetch or anything as he has trouble letting it go when it is actively moving, but it makes him happy while he has it. We just make sure to monitor him while it is out.
The ability to change the outer shell and just buy a replacement for the shell instead of a whole new toy is a lovely feature that makes me very happy to continue buying from this company.
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Reviewed in the United States on April 19, 2026