Plants receive their nutrience through their root. The nutrience travels throughtthe roots into the steam, and travel through the leaves, and through the rest of theplant!
Since starfish are saltwater creatures you should be able to acquire one form your local petstore. If no local petstore or they do not carry a saltwater section, then there is always thousands of online retailers.
From nutrience
geting the proper nutrience
Nutrience
beta-carotene (vit a)
to get the nutrience it needs to live
tuna,nutrience
because it has more nutrience in it
tuna,nutrience (soil)
Which part of plant takes in nutrience
of course they need the nutrience