Out-of-Stock Macroalgae Fertiliser Continuum Basis Chaeto Grow 1 Review(s)  £12.47 Basis Chaeto Grow from Continuum is a liquid nitrate & phosphate free multinutrient supplement for the planted Reef Tank & Refugium. Improve the growth of your macroalgae species, especially when growing the fast growing algae species Chaetomorpha / Chaeto and Caulerpa live algae. View