Undergravel filters: old-school, simple, and still very much a thing

Undergravel filters: old-school, simple, and still very much a thing

Undergravel filters were long used in marine aquariums and have enjoyed a surge in popularity in freshwater tanks in the past decade as the importance of the nitrogen cycle has become apparent. They can minimize ammonia and nitrite levels, are simple and inexpensive to install, and still need proper setup and maintenance to keep working well over the long term.

Gobble's Take: Hidden from view, sure—but not hidden from responsibility.
Source: Aquarium Setup

A shelf snapshot of aquarium reading

The aquarium shelf includes Ecology of the Planted Aquarium: A Practical Manual and Scientific Treatise for the Home Aquarist by Diana Walstad and The Reef Aquarium, Vol. 3: Science, Art, and Technology by Julian Sprung.

Gobble's Take: A tidy snapshot of the shelf.
Source: Popular Aquarium Books

In Case You Missed It

Yesterday's top stories:

• Two clowns, two very different shades of orange
• The betta-in-a-cup problem still has teeth