Mix and Match LT05 and LT04 tapes

Hi there, 

Currently I have a LT05 tape drive using only LTO5 tapes. The LT05 tapes are configured as Media Type HCART2. The drives are configured as HCART2. 

I have been given LTO4 tapes so just wondering if it is possible to use these tapes in the current setup?

Thanks,

M