Is this fine calcite ?

I don’t know the difference between fine or cores but it seems pretty fine to me

i have 2.5 x 20inch refillable filter... how many of this will fill it

Less than 1. This bag is almost 1 cubic foot in volume. Your filter is about .22 cubic feet. Of a bigger concen may be the mesh size (for contact area and is not listed), and the % calcium carbonate also not listed.

Why does the bag say limestone? is this limestone or calcite?

Calcite is a naturally-occurring mineral rock (limestone) consisting of approximately 95% calcium carbonate and 3% magnesium carbonate.

Calcite Calcium Carbonate Ph Filter Media 1 2 Cu Ft

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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4023 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Romania.

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Description

💧 Elevate your water game with precision pH control—because your flow deserves the best.

OPTIMIZED FLOW RATES - Designed for 8 GPM backwash and 6 GPM service flow, maximizing efficiency and longevity.
HEAVY DUTY HASSLE FREE - 50 lbs of premium calcite media, no batteries or extra components needed—just pure filtration power.
BALANCED P H BALANCED LIFE - Naturally sourced calcium carbonate ensures gentle, steady pH adjustment without spikes.
PERFECT FIT FOR STANDARD TANKS - Ideal for 8" x 44" tank systems, with enough media to keep your filtration on point.
ANNUAL REFRESH FOR PEAK PERFORMANCE - Media replenishment once a year keeps your water chemistry flawless and consistent.

This 1/2 cubic foot Calcite pH filter media, made from natural calcium carbonate, offers slow and controlled pH correction for water systems. It supports 8 GPM backwash and 6 GPM service flow rates, fitting perfectly in 8" x 44" tanks. Weighing 50 pounds, it typically requires annual replenishment depending on water chemistry and usage, ensuring consistent, balanced water quality.

Specifications

ASIN	B004Q0GFNG
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#84,778 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,290 in Aquarium Filter Accessories
Customer Reviews	4.5 4.5 out of 5 stars (212)
Date First Available	February 28, 2011
Included Components	calcite
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Item Weight	50 pounds
Item model number	CLCT-05
Manufacturer	Abundant Flow Waer
Material	Copper
Part Number	FM-CLCT-05
Product Dimensions	14 x 14 x 6 inches
Size	478 Fl Oz (Pack of 1)

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4023 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Romania.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Calcite (Calcium Carbonate) pH Filter Media 1/2 cu. ft

Description

Specifications

Common Questions