Ok thanks, I think I understand.

I don't get it... Was mining Zcash here for almost a week and it seems my address was not credited at all t1fXaD6dVZDD5sLVqrAe8GWNoskwVRm1Dtk  Same with LTC I was mining here for around a month and never got anything for last block found LfS7fyCA7g3KMj8WXyVnYdp4oPii3CaB4B

May be my hashrate is too low to get anything? I guess it's fine as long as I understand.