I’m not sure how you maintain your Alk/Ca/Mg, but having a technique in place to keep them in check is important. What are you using for flow, or what is your tank turnover? SPS corals seem to thrive in chaotic, random flow. Nutrients also play an important role; watch your import and export.
Your light fixture is very capable of growing SPS, adding a bulb or two to your fixture is always an option, especially if you’re into DIY.
Start with some of the easier SPS, as you gain experience move up to more challenging species. Some easier ones include, birdsnest, montiporas, and some stags/Formosa‘s .
Take it slow and pay attention to the corals, their behaviour will tell you when something is wrong.
Cheers
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