---
product_id: 400918124
title: "Dr. Turtle Slow-Release Calcium Block for Turtle Care, Aquarium Water Treatment, 0.02 Pounds"
brand: "zoo med"
price: "€ 33.33"
currency: EUR
in_stock: true
reviews_count: 5
category: "Zoo Med"
url: https://www.desertcart.hr/products/400918124-dr-turtle-slow-release-calcium-block-for-turtle-care-aquarium
store_origin: HR
region: Croatia
---

# Treats up to 15 gallons of water Slow-release calcium for steady shell growth Compact 0.02 lb block, easy to use Dr. Turtle Slow-Release Calcium Block for Turtle Care, Aquarium Water Treatment, 0.02 Pounds

**Brand:** zoo med
**Price:** € 33.33
**Availability:** ✅ In Stock

## Summary

> 🦎 Keep your shelled friends thriving with effortless calcium care!

## Quick Answers

- **What is this?** Dr. Turtle Slow-Release Calcium Block for Turtle Care, Aquarium Water Treatment, 0.02 Pounds by zoo med
- **How much does it cost?** € 33.33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/400918124-dr-turtle-slow-release-calcium-block-for-turtle-care-aquarium)

## Best For

- zoo med enthusiasts

## Why This Product

- Trusted zoo med brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Multi-Pet Friendly:** Perfect not just for turtles but also ideal for aquatic snails and other shelled pets.
- • **Steady Shell Strength:** Slow-release formula ensures continuous calcium supply for optimal shell development.
- • **Water Quality Booster:** Maintains ideal water hardness to prevent shell cracks and discoloration.
- • **Compact & Long-Lasting:** Small 0.02 lb block treats up to 15 gallons, blending convenience with efficiency.
- • **Effortless Aquarium Care:** Simply place the block in water—no complicated dosing or mixing required.

## Overview

Zoo Med Dr. Turtle Slow-Release Calcium Block is a compact, easy-to-use supplement that conditions aquarium water and provides a steady calcium supply to promote healthy shell growth in aquatic turtles and other shelled pets. Treating up to 15 gallons, it maintains optimal water hardness to prevent shell damage, making it a top-rated choice among reptile enthusiasts.

## Description

Dr. Turtle is a slowrelease calcium block that conditions water while providing a calcium supplement to promote healthy shell growth for aquatic turtles. To use, simply place the Dr. Turtle Block in

Review: Great Product
Review: I know many use the Dr Turtle Slow-Release Calcium Block for other pets, but I just want to note that it's perfect for my Mystery Snail. The water parameters stay at a perfect hardness to keep his shell a beautiful golden color and without pivots, cracks, or marks.

## Features

- Turtles require UVB lighting and heat for proper shell growth and development
- Dr Turtle is a slow-release calcium block
- To use, simply place the Dr. Turtle Block in your turtles water supply

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0061TC8C2 |
| Best Sellers Rank | #3,086 in Pet Supplies ( See Top 100 in Pet Supplies ) #11 in Reptile & Amphibian Food |
| Brand Name | Zoo Med |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,570) |
| Item Form | Rock-like |
| Item Type Name | Zoo Med Laboratories Szmmd11 Dr. Turtle Slow-Release Calcium Block, Net Wt .5 Oz |
| Item Weight | 0.02 Pounds |
| Liquid Volume | 15 Gallons |
| Manufacturer | Zoo Med Laboratories Inc |
| Manufacturer Part Number | ZML-051 |
| Model Number | 26223 |
| Target Species | Turtle |
| UPC | 097612800128 |

## Product Details

- **Brand:** Zoo Med
- **Item form:** Rock-like
- **Item weight:** 0.02 Pounds
- **Liquid volume:** 15 Gallons
- **Manufacturer:** Zoo Med Laboratories Inc

## Images

![Dr. Turtle Slow-Release Calcium Block for Turtle Care, Aquarium Water Treatment, 0.02 Pounds - Image 1](https://m.media-amazon.com/images/I/91tkgVDtD6L.jpg)

## Questions & Answers

**Q: I have 3 RES turtles, they keep eating this thing in few days. Is that okay?**
A: Yes, it is OK.  My turtles (red ears, maps, and cooters) do that too.  Many years ago, I had 2 map turtles, both of which lived for 26 years, that ate calcium blocks when offered.  The turtles I have now totally consume these blocks in 3 days, and the turtles are growing very fast and have very hard shells.  Apparently, it is instinctive for turtles to consume rich calcium sources  such as this.

**Q: Can I use in fish tank to raise ph?**
A: I do mine

**Q: Can this be used in place of a water conditioning liquid? Does it make water safe for fish as well or do I need a separate water conditioner for fish?**
A: No, It does not take the place of water conditioning liquid. It does not remove chlorine or chloramines. These blocks simply adjust pH and water hardness.

**Q: You you have to have a certain amount of water in the tank to use the Dr. Turtle block?**
A: No but if you're doing a bare bottom tank the block will leave a calcium spot on the glass that I never could seem to completely get off

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***Y on 30 January 2026*

Great Product

### ⭐⭐⭐⭐⭐ Review
*by C***A on 27 January 2025*

I know many use the Dr Turtle Slow-Release Calcium Block for other pets, but I just want to note that it's perfect for my Mystery Snail. The water parameters stay at a perfect hardness to keep his shell a beautiful golden color and without pivots, cracks, or marks.

### ⭐⭐⭐⭐⭐ Review
*by A***. on 24 October 2017*

Wir besitzen 2 Wasserschildkröten. Die eine Schildkröte hat auf dem Panzer eine helle Verfärbung, unser Tierarzt hat gesagt, wir sollen etwas mehr Calcium verfüttern bzw etwas ins Wasser dazugeben, da dieses für das Panzerwachstum benötigt wird. Da unsere Schildkröten die Sepiaschale nicht anrühren, bin ich auf diesen Calcium Block gestoßen. Günstig gekauft und sofort ins Wasser gegeben. Der Block hat sich innerhalb von 2 Wochen komplett aufgelöst und nach meinem Empfinden hat es auch etwas gebracht. Zumindest seid dem der Block im Wasser ist und sich aufgelöst hat, seid dem knabbern die Schildkröten deutlich mehr an der Sepia rum als vorher und auch die Verfärbung ist etwas zurück gegangen. Wir haben außerdem im Wasser noch einige Planzen + 5 Fische. Allen geht es trotz dem Calcium Block natürlich noch gut :)

## Frequently Bought Together

- Zoo Med MD-11E Dr Turtle Calcium Block
- King British Turtle and Terrapin Multivitamin 20ml
- King British – Turtle & Terrapin Water Freshener 100ml – For Cleaner & Clearer Water – Removes Harmful Ammonia & Nitrite – Ideal for Setting up a New Aquarium or Partial Water Changes

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-23*