Cryptocoryne requires a substrate that is fertilized with an iron-rich fertilizer. Regular pruning and thinning will keep it looking its best. Cryptocoryne requires stable water conditions to prevent rotting of the stems and leaves. Provide at least 2 watts per gallon using full spectrum bulbs (5000-7000K). Water temperature should be between 75° and 82°F, with a dKH of 3-8 and a pH of 6.5 to 7.5.