WIll diatoms kill corals?

Diatoms:

1. Diatoms are unicellular, photosynthetic algae.
2. They are found in aquatic habitats.
3. They serve as food for many aquatic organisms.

Diatoms can kill corals by:

1. Growing at the base of the coral reef in the reef tank.
2. Then they gradually move upwards.
3. This causes a noticeable recede in the coral colonies, ultimately killing them.