Brand new layout tool, Pro Brush Hard is released from ADA.
Pro Brush Hard is a maintenance tool for professionals to scrape off algae on driftwood and stones in planted aquariums. Unlike the existing Pro Brush, its brush part is made of metal, and especially tough black beard like algae and coral like algae can be scraped off. The existing Pro Brush which hardly leaves scratches on stones continues to be on sale. Please use the existing Pro Brush and the brand new Pro Brush Hard appropriately depending on types of algae and layout materials.

Pro Brush Hard
https://www.adana.co.jp/en/contents/products/na_layout/detail06.html