i notice that alot of sens have been said... i had a sen too and he was the only one that went to the top for freeze dried krill and frozen bloodworms. now i have 2 ornates and they wont go to the top at all. really depressing actually cause i am almost out of sinking krill pellets and they arent eating the shrimp that i bought instead of the $8 for a thing of 3.3oz of krill pellets.