Ideal phosphate levels for corals

[robson]

I'm new to this, but my LFS told me to aim for 0.05 ppm. Is that too low for soft corals? I've got a 20-gallon with zoas and mushrooms, no skimmer yet.

Nah, 0.05 ppm is fine for softies. They're way more forgiving than SPS. Just keep an eye on your nitrates too—zoas can be weird if those swing wildly.

[sweetflake]

Exactly. Soft corals are chill with a wider range. But if you start seeing recession or closed polyps, test everything—not just phosphates. Also, consider a small skimmer if you're planning to add more livestock.