That's because the plant is still too small. In that case, just spray the whole plants with a spray bottle until they are large enough to receive it in the pitchers as that work very well too. You still have to put it diluted to 1/4. Once they will be big enough, the water drops will go down easily. That's usually around 3 to 4 months old.I tried using a syringe to drop dilute fertilizer my baby sarrs but the drops would just slide off the plant bodies so i tried putting some in their 'mouths' haha didn't really work. Hopefully they get something from it regardless.