The Bio Dude Soil Cal Plus (CaCO3)

Calcium for the substrate, not the animal. A bioactive enclosure’s clean-up crew draws calcium out of the soil constantly — isopods and springtails need it for their exoskeletons — and over months a substrate runs down. Soil Cal Plus is straightforward calcium carbonate that puts it back.

• Keeps the clean-up crew supplied: a calcium-depleted substrate is one of the quieter reasons isopod and springtail populations fade. Our clean-up crew guide covers what these colonies need to stay stable long term.
• Simple dosing: sprinkle a small amount into the soil and mix — The Bio Dude suggests roughly three pinches per six quarts of substrate, repeated every two to three months. It can also be dissolved in water (about a tablespoon per 32 oz) and sprayed on plants that are heavy calcium users.
• Not a dusting powder: The Bio Dude is explicit that this is a soil supplement — don’t dust feeder insects with it or spray it on animals. It works in the substrate, alongside (not instead of) your normal supplement routine.
• Part of maintaining, not replacing: the whole point of bioactive is a substrate you support rather than throw out — our bioactive substrate guide explains the system this slots into.

Sold by Bask & Burrow and ships direct from The Bio Dude. See our shipping policy and refund policy for details.