You need to give these fish a lot more than just worms, as macrobrachium and neocaridina shrimp are their main diet in the wild, so giving them that will get them to grow fast, once they settle and start eating a proper diet their growth is quite fast and they also get tame.Just checking in. Eel still hasn't grown much at all, yet still eats the red wrigglers. Thinking of moving on from him if this continues...