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UNS Controsand - Vesuvius

Original price $ 29.99 - Original price $ 49.99
Original price
$ 29.99
$ 29.99 - $ 49.99
Current price $ 29.99
Size: 3L

Product Overview

Ultum Nature Systems Controsand offers a versatile lineup of natural decorative sands and gravels designed to give any planted tank or freshwater aquarium a finished, professional look. Vesuvius is a chunky black lava rock aquarium gravel that brings serious dark-mode energy that contrasts beautifully with lighter hardscape and colorful aquatic plants. Its highly porous composition is great for housing beneficial microbes and provides a natural, secure foraging ground for dwarf shrimp! Measuring 4mm to 8mm, this dark substrate looks fantastic as a standalone substrate, scattered around hardscape bases, or layered with other cosmetic sand.

This item qualifies for FREE shipping to the contiguous U.S. Shipping to Alaska or Hawaii? Contact us for a custom shipping quote—we’re here to help!

Key Features & Benefits

  • Highly porous black lava rock structure provides expansive surface area for beneficial bacteria colonization.
  • Naturally dark lava tone creates dramatic visual contrast against bright green aquatic plants and colorful shrimp.
  • Natural decorative geological composition designed for aquarium, paludarium, and other terrestrial use.

Usage & Application Guidelines

  • Distribute the granules evenly across foreground areas, hardscape borders, or dedicated accent zones.
  • Pour water gently over a plate or plastic barrier during filling to avoid disturbing your hardscape arrangement.
  • Pair with root tabs or layer over aquarium soil when planting heavy root-feeding species in lava gravel zones.

Quick Facts & Specifications

Listed information should be treated as general guidelines only. Team Buce Plant encourages you to do thorough research to ensure healthy growth!

Granule Size Comparison

Attribute Specification
Granule Size Chunky Lava Gravel (4.0–8.0 mm)
Ideal Applications & Plants Shrimp tanks, hardscape accenting, biotope riverbeds & contrast pathways
Key Advantage Highly porous surface hosts beneficial microbes; deep black tone highlights plant colors

Substrate Volume & Tank Sizing Guide

Bag Size Recommended Tank Setup Estimated Bed Coverage
3 Liters ~9 Gallons / 34 Liters (e.g., UNS 45U Standard Tank) ~1 to 1.5 inch accent depth
8 Liters ~20 Gallons / 75 Liters (e.g., UNS 60U Standard Tank) ~1.5 to 2 inch full bed coverage

DRY vs. WET

UNS Controsand - Vesuvius

Overall rating: 5.0 / 5 from 14 reviews.

AI Generated Review Summary

Summary topics

Review topics: [customer service, amount, gravel].

Review highlights

Reviews

Great customer service

"The gravel looks great and was easy to clean before adding to aquarium."

— Tanya K. (5/5)

"8L bag is a perfect amount for my 20 gallon long tank setup for shrimp"

— Jacob (5/5)

"I’ll buy it over and over!"

— Camille (5/5)

Quick shipping

"Quick shipping good customer service"

— Jacob B. (5/5)

"So far as ive been using for my tank, and now my 3rd it has done the job well, providing good nutrition but not overwhelming the tank itself."

— Landon (5/5)

I’m a newbie so don’t

"I’m a newbie so don’t have anything to compare it to, but it was a good amount for my 10 gal tank and I have no complaints!"

— Doro M. (5/5)

"Love the crushed lava rock in my tank! And I got the package pretty quick!"

— Cody (5/5)

"If you like Kona, you may like this even better"

— Warden (5/5)

Every thing arrived on time

"Every thing arrived on time and was more than enough for what you think it is!! Will definitely order again!!!"

— Braden G. (5/5)

"Only got this because Kona wasn’t available but, good quality, had to rinse quite a bit but otherwise it’s amazing"

— Steven (5/5)

Q&A

What bags on Buceplant can I buy to put this into so I can stack them for height in the back of an aquascape without using aquasoil?
Hi Gabriel, Thank you for your question. We do not sell bags for the UNS Contrasand at this time. Please reach out to us at support@buceplant.com with any additional questions. Best regards, Team Buce Plant