Everything about terrariums Filters and pumps
For clean water and stable values in terrarium aquariums
Whether you have a paludarium, aquaterrarium or water section in your terrarium: with the right filters and pumps for terrariums, you can ensure clear visibility, healthy animals and consistent water values. Reliable water circulation is particularly important for amphibians, turtles and tropical setups – it prevents deposits, reduces odours and supports the biological balance.
Why filters are so important in terrarium keeping
A good terrarium filter performs several tasks at once:
- Mechanical filtration: removes suspended solids, food residues and plant material
- Biological filtration: promotes beneficial bacteria to reduce harmful substances (e.g. ammonium/nitrite)
- Chemical filtration (optional): e.g. with activated carbon to combat odours or discolouration
This keeps the water in your terrarium hygienic – and you don't have to change the water completely as often.
Pumps: the basis for flow, oxygen and function
A suitable terrarium pump creates movement in the water. This has a direct effect on water quality:
- More oxygen input through surface movement
- No ‘dead zones’ – less dirt accumulates
- Better heat distribution when a heating rod runs in the water section
Also ideal for waterfalls, streams and sprinkler systems in terrariums
Internal pump, feed pump or complete filter – what suits your setup?
Internal filters are compact and perfect for smaller water features. External filters offer a large filter volume and are ideal if the water area is larger or the inhabitants produce more dirt (e.g. turtles).
Feed pumps are often used when you want to create a specific flow or operate water features.
How to find the right service
When it comes to pumps, the most important factors are the flow rate (l/h) and the delivery head (important for waterfalls). As a rule of thumb, it is better to oversize slightly and throttle if necessary than to choose a pump that is too weak. Tip: Make sure the pump is quiet, easy to clean and has suitable hose connections – this makes a big difference, especially in living areas.
Accessories & filter media: small parts, big impact
For long-lasting, stable results, it is worth investing in the right accessories:
- Filter wool/fleece for fine particles
- Filter mats & sponges for biological filtration
- Hoses, valves and suction baskets for clean installation
- Replacement rotors and seals for long-lasting pump performance
For which animals are terrarium filters and pumps particularly suitable?
- Water turtles: high levels of dirt: strong filtration required
- Amphibians (e.g. frogs, newts): sensitive: stable values, gentle current
- Paludariums with plants: clear water and less algae formation
- Aquaterrariums: constant circulation and hygiene in the water section
