---
product_id: 88068596
title: "ACS00370 South Sea Base Rock for Aquarium, 40-Pound"
brand: "carib sea"
price: "€ 526.06"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/88068596-acs00370-south-sea-base-rock-for-aquarium-40-pound
store_origin: NL
region: Netherlands
---

# 50% void space Natural limestone Made in USA ACS00370 South Sea Base Rock for Aquarium, 40-Pound

**Brand:** carib sea
**Price:** € 526.06
**Availability:** ✅ In Stock

## Summary

> 🌟 Dive into Excellence with Carib Sea!

## Quick Answers

- **What is this?** ACS00370 South Sea Base Rock for Aquarium, 40-Pound by carib sea
- **How much does it cost?** € 526.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/88068596-acs00370-south-sea-base-rock-for-aquarium-40-pound)

## Best For

- carib sea enthusiasts

## Why This Product

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

## Key Features

- • **Unmatched Porosity:** Experience a remarkable 50% void space for optimal filtration and water flow.
- • **Safe for All Systems:** Perfectly suited for both marine and high pH freshwater setups.
- • **Durable & Long-lasting:** Crafted through natural weathering, ensuring longevity and stability.
- • **Calcium Carbonate Boost:** Enhances water quality and supports healthy pH levels.
- • **Transform Your Aquarium:** Elevate your aquatic environment with stunning natural rock formations.

## Overview

The Carib Sea ACS00370 South Sea Base Rock is a 40-pound natural limestone rock designed for aquariums. With an impressive 50% void space, it promotes excellent water flow and filtration, making it safe for all marine and high pH freshwater systems. This durable rock not only enhances the aesthetic appeal of your aquarium but also supports healthy pH levels, ensuring a thriving aquatic environment. Proudly made in the USA, it's the perfect addition for any aquarium enthusiast.

## Description

ACS00370 South Sea Base Rock for Aquarium, 40-Pound

## Features

- At an unprecedented 50% void space (macro and micro), you will be hard Pressed to find a durable natural Rock that has this magnitude of porosity
- Natural weathering processes form the fantastic shapes of South seas base Rock by the erosion and pitting of Limestone over the course of eons
- Safe for all marine and high ph freshwater systems
- Calcium Carbonate rock supports health ph
- Made in the USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Pet Type | Aquatics, PetSupplies, Aquatics Gravel, Aquatics Gravel Marine |
| Item model number | 00370 |
| Pet Life Stage | all stages |
| Allergen Information | Cashews Free |
| Colour | white |
| Size | 40 Pound |
| Diameter | 1 Inches |
| Volume | 1 |
| Number of Items | 1 |
| Quantity | 1 |
| Specific Uses | Active |
| Batteries required | No |
| Batteries Included | No |
| Item Weight | 454 g |

## Images

![ACS00370 South Sea Base Rock for Aquarium, 40-Pound - Image 1](https://m.media-amazon.com/images/I/6139V5+NyAL.jpg)
![ACS00370 South Sea Base Rock for Aquarium, 40-Pound - Image 2](https://m.media-amazon.com/images/I/31F70XiG3DL.jpg)

## Questions & Answers

**Q: Anyone  ever try to drill holes in this stuff?  i desire to drill lots of 1/4 inch holes to sink some living color coral in....**
A: I've drilled multiple holes into the material. Very easy to do with masonry drill bits. Placed into bucket of RODI water and used multiple sizes. Video shows some of the holes. Very great product. Highly recommend.

**Q: I have 150 gallon freshwater tank looking for large decor. I have 20"pleco mollies, platty, guppies, loaches, mixed catfish. Would you recommend this?**
A: The short answer is no.  Rock is really good for saltwater because it raises kh along with the biological filtration benefits.  Using these rocks in a freshwater tank without letting them soak for an extreme amount of time (like 6 months to make sure that all the soft rock has broken down) could seriously impact a freshwater tank with scaleless fish.  With loaches and I assume scaleless cats, you must know how sensitive your fish are to high kh and kh spikes so I would recommend avoiding base / reef rock like the plague.  The best decorations for freshwater are river rock / lava rock and driftwood.  I have two large pieces of driftwood and some slate + river rock in my FW ciclid tank and my experience supports the idea that driftwood can help soften the water a bit.  Remember that plecos and loaches love driftwood and will feed on the algae that grows on it.  I have friends who have had success replication the look of base rock with lava rock but do some research about how the rock can change your water chemistry.

**Q: What is the shelf life for these rocks? I mean how long you can keep them without using them in the tank**
A: These are not live rocks so they last as long as any rock... Hope this answered your question. They are dead dry rocks

**Q: Is this 1 40 lb dry rock, or 40 lbs of dry rock?**
A: It’s 40 pounds of assorted sizes of base rock. It can vary a lot, one time it was basically just 3 large rocks, other times I’ve ordered it it’s 8-10 pieces of various sizes.

## Frequently Bought Together

- Carib Sea ACS00370 South Sea Base Rock for Aquarium, 40-Pound
- Seachem 67131150 Reef Glue Cyanoacrylate Gel Coral Frag Mounting, 20g
- Seachem Ammonia Alert for Freshwater and Marine Fish

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*