Question about Sturgeon

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Alright, I'll actually answer the question...a sterlet is a small(er) sturgeon that stays roughly <3'...it needs water temps somewhere between 50-60 degrees Fahrenheit to survive. Sturgeons have issues digesting vegetable proteins (hence everyone saying "THEY ARE HARD TO RAISE") meaning they need special food that they can digest.
 
Sterlets are great! They do appreciate an unheated tank, are very active, and in my experience are easy to feed. Give them foods small enough to fit in their mouth and they'll likely take it. Mine all quickly learned to find the food wherever it is, including swimming upside down at the surface to eat floating foods. When small they are relatively quick growers. From about 5 inches to 12 in less than 2 years.
 
Sterlets are one of the smaller sturgeons and they take a long time max out at the 3 or lil over 3 ft mark. They can be kept with warmer tankmates but not reccomended as it is harder than keeping them with similar temp tankmates. Another thing not mentioned is all sturgeons need different temps through out the year. They do best with cold and warm water temps changes like seasons through out the year. But all in all pretty straight forward if you choose to keep at constant temps of 60's. Just like most other fishes.
 
yes,i agree with sterlet if you want to keep a sturgeon.or you can try shovelnose sturgeon since both of these species only reach 1 meter or some even 60 cm in captivity.but even these smaller species need at least 1000 gal pond or tank with difficult requirement
 
Honestly,just forget it. Problem 1 is temperature. Rtc needs constant tropical temp throughout the year, sturgeon needs about room temp in summer and just a few degrees over freezing in winter. Secondly, 300 gallons is way too small for a fish that grows 3' and is very active. Add a zero and you're fine. Lastly, sturgeon need very fatty foods. Your RTC will gobble up all the sturgeon's food and get health issues. So will the sturgeon because it will be malnourished.
 
Ya, a sturgeon will die in that tank.
I've have owned both Diamond and Sterlet Sturgeon, so have actual experience with them too.

There are three main issues:

Your sturgeon will fail to thrive at those temps. It may survive for a period of time, but it will never be happy.

It won't get any food. Mine managed to hold their own against koi goldfish and mahseers, however I had the sturgeon trained to swim upside down along the surface and take food from forceps. If it wasn't for that I have a feeling they would have starved. Amongst those other fish, they will eat any food you try to feed the sturgeon with gusto and most likey try to eat the sturgeon later on. Assuming you get the sturgeon at a couple of inches and the RTC is the same length, in a year that sturgeon might be an inch or 2 longer, the RTC might be a foot or so longer. And will probably try to eat your sturgeon. Sturgeon are also not aggressive at all, and simply ponder around the tank. No regard for other fishes personal space or territories. Most of the fish in that tank are large active and aggressive, and would make for bad tankmates.

Finally, oxygen content. Sturgeon NEED crazy high O2 levels, or they WILL die. That is how I lost mine, the airstone managed to get out of the tank one night and I lost them in less then 7 hours, with the filters and pumps still working. Most tanks simply don't have the dissolved oxygen content needed for them, although it is fine for the other fish.
 
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