in my 30 years of reef keeping.. i can never manage to grow coralline.... but my corals grows fine ..If your other aquarium is doing fine. Leave it for now. Grow your foundation in your 150 first. If you move over sensitive corals or fish. The foundation isn’t set yet. They will suffer or die. If you want to move corals. Move hardy ones. Like mushrooms and stuff like that. Slow and steady. The pros say. When you can grow coralline algae. Then you can start to grow corals.
Oh if you’re doing weekly water changes. You should be good on trace elements. Unless you keep something that requires the elements needed that goes away quickly ie: gonis. lol.