Keeping Coral Alive Out Of Water If Touching Prismarine

My idea is pretty simple, to keep coral alive if it is in contact with any prismarine block, including prismarine, prismarine bricks, dark prismarine and sea lanterns. I understand you can waterlog stairs of prismarine dark prismarine and prismarine bricks, but that can get messy and you can't make it that compact without showing water. Coral, coral blocks and coral fans are all great for decoration, but are so limited because of their water needs. I understand that poses a challenge for the player, so my solution is prismarine because it is still tough to get prismarine! You need to find and enter an ocean monument, after all.