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The Daily Insight

What causes polyp bailout?

Author

Emily Wong

Updated on February 28, 2026

What causes polyp bailout?

In the last two decades, polyp bailout has been scientifically described in at least ten scleractinian corals, in three alcyonacean soft corals, and one antipatharian coral (see Table 1). In most of the experiments, polyp bailout was induced by short-term extreme stress exposure.

Why is my hammer coral shriveled up?

It is likely a water issue and generally the one thing that upsets them is Phosphates and nitrates too low.

Can Hammer coral recover?

The only one that survived but never really recovered was my hammer coral. It lost most of it’s tentacles and bleached, but regained some flesh and a lot of color after about two weeks.

What is a polyp bailout?

Polyp bailout is an established but understudied coral stress response that involves the detachment of individual polyps from the colonial form as a means of escaping unfavourable conditions. This may influence both the mortality and asexual recruitment of coral genotypes across a range of species.

Can I dip a hammer coral?

Should You Dip Your New Hammer Coral? Yes! You should always take the time to dip new corals in a pesticide dip.

Do hammer corals need to be fed?

Feeding the hammer coral All corals are animals. Hammer corals are more subdued eaters who would benefit from the occasional feeding of a meaty marine food like mysis shrimp. Feeding is fairly straightforward. Use Julian’s thing or a Sea Squirt feeder and push the soft, meaty food into the polyps.

Where should I place my hammer coral?

Placing the coral at medium tank level will work, as it tends to expand more there, unlike on substrate. Be sure that it’s placed at least 7 to 8 inches away from other corals as its tentacles (sweepers) will extend up to 6, during the night.

Where do you put hammer coral in a tank?

How much light does a hammer coral need?

Hammer corals do well in medium flow and medium light. You want enough flow to keep them dancing in the current and keep them clean but not so much that they can’t open. Too little low flow and they are unable to clean themselves and will become prone to bacterial infections.