There is only evidence for the loss of 425 Russian tanks (following Oryx). Russia has around 5000 post-soviet era T-90s. There is no need for them to tap into

There is only evidence for the loss of 425 Russian tanks (following Oryx). Russia has around 5000 post-soviet era T-90s. There is no need for them to tap into their stockpile of Soviet era tanks. Even if they had to and only 10% of those stockpiles were usable short term, it would be enough to replenish their confirmed loses.