There is a minimum withdrawal requirement for each digital asset/cryptocurrency on Kraken. Each cryptocurrency withdrawal page reflects this ...
source https://www.google.com/url?rct=j&sa=t&url=https://support.kraken.com/hc/en-us/articles/360000767986&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNEVpC3tKZdAdBi63aDXaFOEqybZLA
