Feed him GREEN seaweed selects. And in my opinion they already have enough nutritional value, I don't think you need to soak the seaweed in Zoe. But I would soak frozen foods in Zoe. Just put Brine, Mysid, and Squid in a cup and put some tank water mixed w/ Zoe and feed it them daily. It'll take awhile but the HLLE will go away. TJ