Episodic bleaching events primarily driven by climate-induced ocean warming have been increasing in frequency in recent years, bringing about longer lasting periods of anomalously warmer ocean temperatures known as Marine Heatwaves (MHW). This in combination with steadily climbing ocean temperatures compromises the existence of coral reef ecosystems worldwide. Singapore’s coral reefs also face multiple external stressors from increasing urbanization and development. With climate change exacerbating further stress on local corals, it has become increasingly important to understand the physiological impact of sudden temperature stress on reef-building corals and their recovery post-stress to optimize coral management efforts. Previous studies have suggested heterotrophic plasticity as a coping mechanism to temperature stress, where reef-building corals increase feeding post stress to compensate for their daily energetic needs. This study explores the effect of prolonged temperature stress on hermatypic coral fitness, and the effect of an increased food availability on post-temperature stress recovery. Three species of Hermatypic corals were subjected to higher temperatures and proxies of coral fitness such as photo physiology, mortality and growth were recorded. After which, selected fragments were supplemented with Artemia nauplii daily for 2 weeks and monitored. Visual observations of recovery were noted earlier for the supplemented tanks and physiological measurements showed a general decline in coral fitness post-heat stress with improvement post recovery, though the performance of supplemented fragments did not reflect any observable positive trend. This suggests that heterotrophic plasticity may not be applicable to all species, corresponding with previous studies and highlighting a research gap worth looking into.