Dataset: Experiment Tank Conditions during a thermal stress experiment using reef building corals collected in Kāne'ohe Bay, O'ahu, Hawai'i.

Cultivation of coral nubbins:From the waters of Kāne‘ohe Bay, HI, four colonies of each coral species M. capitata and P. acuta were identified and collected under SAP 2019-60. Each of the four colonies for each species was fragmented into 30 pieces at the Hawaiʻi Institute of Marine Biology, located on Moku o Loʻe in Kāne‘ohe Bay, HI, and hot-glued to labeled plugs. The 30 glued nubbins of each genotype were then randomly distributed among six tanks (~32 liters; 48.3 cm by 38.1 cm by 17.8 cm; L × W × H), leaving five replicates per genotype in each tank for a total of 40 coral nubbins per tank and 120 coral nubbins per species. Tanks were placed in a flow-through system that had a steady supply of water directly from Kāne‘ohe Bay with an average flow rate of (173.8 ± 73 liters hour−1, mean ± SD). Each tank was fitted with a submersible pump (Hydor 200 gph), a HOBO Water Temp Pro temperature logger (operation range, −40° to 70°C; resolution, 0.02°C at 25°; accuracy, ±0.21°C from 0° to 50°C; Onset Computer Corp.), an Apex temperature probe (Neptune Systems), and two heaters (Aqueon 300-W Heater set to 31°C and DaToo 300-W Glass Heater set to 34°C). The temperature in the tanks was controlled by powering off and on the heaters based on set points in the Apex aquarium controller (Neptune Systems). Light was set for a 12-hour light/12-hour dark cycle using Arctic T247 lights (Ocean Revive).