Wait, I just found a post on SwC about it. You guys can read how Krill calculations work from here:
Krill Rewards ProgramThis means that you just have to keep on participating in tournaments or cash & go and it will increase our krills. The more tournament and the higher the ticket is, the better krill distribution in our accounts. But the free tournaments, they're not counted at all. It's a good reward system that swcpoker did because they also create tournaments that are those with at least 50 krills.