Quick Summary
Amtra Brown Ceramized Quartz is an aquarium substrate for freshwater and marine aquariums. It is a 5 kg pack with a stated grain size of 1.6-2 mm, and it is described as non-toxic.
The substrate is intended to create a natural seabed look. It is also described as having rounded grains, with use notes that mention fish which dig in the bottom.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Amtra, which identifies the product range. |
| Product type | Aquarium substrate for freshwater and marine aquariums. |
| Colour | Brown. |
| Material type | Ceramized quartz. |
| Grain size | 1.6-2 mm, a useful check for the look and feel of the substrate bed. |
| Pack size | 5 kg. |
| Safety note | Described as non-toxic. |
What to Compare Before Buying
- Aquarium type: This substrate is described for freshwater and marine aquariums, so it suits buyers planning one of those setups.
- Grain size: The stated 1.6-2 mm grain size affects the finish of the substrate bed and the appearance of the base layer.
- Pack size: The pack contains 5 kg, so compare that with the area and depth you want to cover.
- Look: The brown finish is aimed at a natural seabed effect, so check whether that matches the style you want in the tank.
Before You Decide
Confirm that the 5 kg pack and 1.6-2 mm grain size match the aquarium base you plan to create. It is also worth checking that the intended tank type is freshwater or marine before choosing an offer.












