Taiwan Bee vs CRS

[illumnae]

Hi, can anyone help to clarify the differences between these 2? Are they the same? I know CRS shouldn't be kept with special Taiwan Bee variants like BKK, WR and BB.

However, different variants of Taiwan Bee can be kept together.

Also, I have seen "lower grade" Taiwan Bee that look exactly like CRS/CBS, but their offspring produce special variants like BKK and Shadow Panda. Hence, they're clearly not the same, since "normal" CRS (even PRL) will not produce such variants.

Are we able to get such "lower grade" Taiwan Bee that look like CRS/CBS in Singapore?