The Chaetomorpha Algae has a green color. Photosynthetic, requires moderate lighting at a preferred spectrum of 10,000k. Chaetomorpha will grow in a dense free floating mat. Chaetomorpha can grow quickly and is generally unappealing to most herbivores. Many consider Chaetomorpha to be a low-maintenance specimen. Has high lighting needs. The requires intermediate water flow. The Chaetomorpha comes to you free floating in a dense mat, roughly the size of a closed fist. The green filamentous algae grows in dense mats and grows best when tumbled regularly and responds well to a strong current. Keep water quality high (SG 1.023 - 1.025, pH 8.1 - 8.4, Temp. 72 - 78° F). This item usually comes with a handfull size, free floating. Size may vary slightly.