Internal Aquarium Power Filters
How filters work
Although different types of filter can do different things, they all perform two important tasks:
• Mechanical filtration is the trapping of solid waste. Sponges and other ‘mechanical’ filter media act like a sieve, straining particles from
• Biological filtration is the removal of dangerous dissolved wastes from the water by naturally occurring bacteria.
These special nitrifying bacteria convert ammonia into nitrite, and then nitrite into harmless nitrate. This process is called nitrification, and it occurs on special biological media.
The filter is the most important piece of equipment in your aquarium, performing a number of jobs:
• Trapping solid waste and removing it from the water
• Removing toxins such as ammonia and nitrite
• Removing dissolved organic matter from the water, keeping it crystal clear
• Aerating water, increasing its oxygen content
Types of filter
Although all filters offer both mechanical and biological filtration, they differ in their ease of use, efficiency, and overall ability to keep the aquarium healthy. All TetraTec filters are designed to offer a combination of efficient filtration and ease of use. There are two main types of filter to choose from.
Most people begin with an internal filter and move on to an external as they progress. However, with modern external filters being so easy
to use, more people are choosing to start with them. The size of filter you need depends on the volume of your aquarium. The packaging will tell you what size of aquarium the filter can manage, so it is simply a matter of matching the two up.
These filters fit inside the aquarium, fixing to the glass with rubber suckers. They usually contain a sponge that works both mechanically and biologically, to remove ammonia and solid waste. They are ideal for smaller aquariums, or those that are not heavily stocked with fish.
Fluval U Series Underwater Internal Aquarium Filters
The 3 stage filtration with Biomax for superior aquarium water quality, flip-Top access for quick and easy cartridge replacement and three way flow control make the new Fluval U Series the benchmark in underwater filtration.
Fluval underwater filters with three stage filtration are ideal for use in fresh, marine or reptile environments.
Stage 1 foam removes large particles.
Stage 2 poly/carbon cartridge traps fine debris, improves water clarity and removes impurities.
Stage 3 Biomax provides optimal biological filtration efficiency.
For aquariums, terrariums and turtle tanks
Ideal supplemental or stand-alone filter, or for installations where external filtration is not possible
Filters debris and provides optimal biological filtration
Silent and efficient
Simple to install and maintain
Engineered and manufactured in Italy
Top output for maximum circulation and oxygenation.
Integrated spray bar provides even, gentle flow for planted aquariums.
Bottom output for deepwater agitation.