I am wanting to start up a reef and fish tank which i have already circulating. I have had 2 x 10cm mullet in just to keep the cycle going. Have had the system going for over a year now and want to add small bits of live rock to start adding "life" to the system. Also want to add some little blue hermies. Does anyone know if the mullet will be detrimental to my future planned live rock and soft corals? I think they are vegeterian but they do eat the cichild sinking pellets which are aimed to more carnivorous appetites.