• Judy

Sherri1320

The sticks are calcareous algae Neomeris sp. When a whole bush grows, it will be beautiful. On the right in the photo is the sponge Sycon sp., its presence in the aquarium is desirable because it acts as a filter feeder. However, the filamentous algae around the sticks need to be removed with a stiff brush, as it will hinder their growth.

Tracey

Thank you for the prompt response.