Description
Turtle Health Block 60g — Mid-size calcium, vitamin D3 and pH-buffering block for growing turtles
Once a turtle outgrows its hatchling tub, it moves into a bigger tank with more water, more waste and more need for steady water chemistry. Turtle Health Block 60g (SKU: STHB60) is the middle size of Serenity’s Turtle Health Block, a block that dissolves slowly in the tank and releases calcium with vitamin D3 and other minerals into the water over time. According to Serenity, the calcium and vitamin D3 help prevent shell softening, a problem it ties to acidic water, while pH-buffering ingredients in the block reduce acidity and the block also neutralises ammonia from the turtle’s waste.
The 60 g size fits the mid-size aquarium that most juvenile and young adult turtles live in, holding three times the material of the 20 g block in a single piece. Serenity does not publish a litres-per-block figure in its retail listings, so the pack is the guide to how much water it treats; when the block has dissolved, a new one goes in. Turtle tanks run with a heavy load of waste, so the block works alongside a good filter and regular partial water changes rather than replacing them, and a pH and KH test now and then shows how well the buffering is holding. Serenity also points out that the block cannot replace good husbandry: the tank needs a dry basking area the turtle can climb onto so its shell dries out, and natural sunlight or artificial lighting is essential. Turtle Salts 250g (STS250) pairs with the block at water changes.
Usage & Application
When to Use
- Growing turtles: Juveniles moving up from a hatchling set-up into a larger tank.
- Acid-prone water: Tanks where waste keeps pulling the pH down.
- Shell support: Continuous calcium and vitamin D3 in the water.
- Routine maintenance: A steady background treatment between water changes.
Dosing & Administration Guide
- Read the label: Match the block to the volume stated on the pack.
- Place in the water: Drop the block into the tank, where it dissolves gradually.
- Test occasionally: Check pH and KH to see how the buffering is holding.
- Renew on schedule: Replace the block once it has fully dissolved.
Product Specifications & Highlights
Key Features
- Middle size: A 60 g block for mid-size turtle tanks.
- Shell minerals: Releases calcium with vitamin D3 and other minerals.
- Buffers acidity: pH-buffering ingredients reduce acid in the water.
- Neutralises ammonia: Serenity’s stated action on waste ammonia.
- Gradual release: Works steadily as the block dissolves.
Product Details
- Brand: Serenity Aquatics (Australia)
- SKU: STHB60
- Barcode (GTIN/EAN): 9343740000765
- Product Type: Additives & Supplements > Turtle Water Conditioning Block
- Net Weight: 60 g
- Releases: Calcium, vitamin D3 and other minerals
- Water Action: pH buffering and ammonia neutralising (per Serenity)
- Form: Slow-dissolving block
- Other Sizes: 20 g (STHB20); 100 g (STHB100)
- Companion Products: Turtle Salts 250g (STS250); Turtle Water Conditioner 150ml (STCWC150)
- Target Environment: Mid-size aquatic turtle tanks


There are no reviews yet.