Lobelia Cardinalis

Lobelia Cardinalis is rated as a medium-light plant, with a target of about PAR 30-60 at the leaves. Medium light is roughly what a mid-range planted-tank LED delivers over a standard-depth tank; going brighter without more CO2 and fertilizer usually shows up as algae rather than faster growth. CO2 is recommended for it, and its care difficulty is listed as intermediate.

CO2 is recommended for Lobelia Cardinalis. It can get by without injection, but growth and leaf form are better with a steady CO2 supply. It is a medium-light plant, with a target of about PAR 30-60 at the leaves. For nutrients: plant in nutrient-rich aquasoil with root tabs. Liquid fertilizer dosed weekly. Keep light, CO2 and fertilizer in balance, because raising one without the others is the most common cause of algae in planted tanks.

Cut healthy stems and replant. Trim stems just above a leaf node, push the cut tops into the substrate, and the trimmed base will usually branch and regrow. New growth comes in fastest when the tank matches its needs: medium light, with CO2 recommended.

It can be, with some planted-tank experience: Lobelia Cardinalis is listed at intermediate difficulty. It needs medium light, with a target of about PAR 30-60 at the leaves, CO2 is recommended, and for nutrients: plant in nutrient-rich aquasoil with root tabs. Liquid fertilizer dosed weekly. Stable light, nutrients and water changes matter more than any single product. Check these needs against your current setup before buying.