I don't use that brand, but my tanks have always had iron supplements if needed (especially for the red leafed plants). I've kept shrimp only, egg scatterers (rasbora sp., Dario dario), Otocinclus sp. and Badis sp. They've all lived, bred, and thrived in tanks with iron added 2x a week and other ferts on 4 other days a week. *shrug*