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Calgrit Bird Supplement 25 kg (Turtle Grit)

Special 25kg size for Fastway & Hunter Express courier options ONLY.  Includes a 20 kg bag + 5kg bag to help save on freight as these couriers charge on a per 25kg basis. For smaller bags of Calgrit see below.


Calgrit is a natural mineral grit derived from calcium carbonate which is a great alternative to shell grit providing more calcium (for hard egg shells) and essential minerals than regular grit. Also for freshwater turtle tanks.

Calgrit is a natural mineral grit derived from calcium carbonate which is a great alternative to shell grit providing more calcium (for hard egg shells) and more essential minerals than regular grit. Calgrit is ideal for laying chickens to help them cope with egg shell production & to aid in bird digestion. Also suitable for other birds & for freshwater turtles as a tank additive.

Calgrit for freshwater turtles:

Calgrit is a granular shaped limestone that adds Calcium and raises Carbonate Hardness (KH) in your water to help keep your PH in the 7.5 - 8.0 range. 2 kg calgrit will do a 2 foot (50 litre) tank.There is no need to rinse this product before putting it into your tank. Your tank will go cloudy for 24-48 hours and your turtles are fine to be in the water during this time.

NOTE: Only the 20 kg size is sent in its original packaging. The other sizes are repackaged and provided in clear plastic bags.

Further Reading on Calgrit:

Pulverised calcium carbonate also known as Calgrit is an off-white (sometimes grey) limestone grit predominantly finer than 3.2 mm and coarser than 2mm. Calgrit is produced from Limestone as quarried at Warwick and is processed under our quality assurance program producing consistent chemical and physical properties resulting in a predictable and repeatable product performance for our customers. Calgrit is commonly used in the poultry industry as an excellent source of calcium. The following typical properties may help you to determine the suitability of the product to best suit your application.

Calgrit Analytical DataCalgrit Particle SizeCalgrit Particle Size

Frequently Asked Questions:

Q. What is the grain size of this calgrit?

A. According to our approximate measurements most of this calgrit is 1.5 to 2.5mm in size, but there is also a little 1mm & 3mm sized calgrit as well. Update, please see new particle size graph above for a more detailed description.

Q. How much is the freight cost to my area?

A. Our website has a freight calculator. Please add the items you would like to order to your cart and then click the "freight calculator" tab above. Then enter your state and postcode to work out the freight cost. Also for deliveries to remote areas or places far from Sydney you might want to consider the 5kg option (below) which fits into a 5kg satchel for economical shipping.

Q. I received grey Calgrit, is this normal?

A. Yes, Calgrit is usually off-white but can also be various shades of grey on occasion.

DISCLAIMER: Ranges and values of trial sample testing or on a Technical Information Sheet are typical or expected ranges and are not guaranteed ranges. You must satisfy yourself that the product is suitable for the purpose for which you intend to use it. We make no representations as to suitability, fitness or merchantability.

Calgrit Particle Size

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