Fluval T200 Heater - 200W - up to 200L (53 US Gal) Substrate & Sand ferrous gluconate is better suited

ferrous gluconate is better suited to foliar feeding than is iron-EDTA owing to the relatively weaker iron-gluconate bonding vs

Drop a single pellet into a tank of fry and they can munch on it all day

Oodinium and Trichodina

reducing carbonate hardness

ReBorn Calcium Reactor Media

Fluval T200 Heater - 200W - up to 200L (53 US Gal) Substrate & Sand ferrous gluconate is better suitedFluval T200 Heater 200W up to 200L (53 US Gal) Series submersible heaters combine electronic accuracy, reliable monitoring, and multiple safety features to easily maintain desired aquarium water temperatures. The 360 indicator light ring displays heat mode clearly from any angle, while a convenient large grip dial allows users to adjust the water temperature with ease. In absence of water, the T Heater automatically cuts power to prevent overheating,