The difference between NEKTON-Rep and NEKTON-Multi-Rep is mainly the vitamin A Content.
NEKTON-Rep has a high vitamin A content (6,600,000 IU).
NEKTON Multi-Rep has a very low vitamin A content (200,000 IU).
Vitamin A softens the shell, that's why NEKTON-Multi-Rep is especially recommended for shell-carriers.
Last update on 2019-09-30 by Marko Orhanovic.