Resun Magi-200 is a compact internal filter for small aquariums of 40–60 l. It delivers 208 l/h, uses 5 W and has a head height of 0.35 m. It attaches to the glass with four suction cups and, thanks to its small size, does not stand out. According to the description, it removes mechanical debris and provides biological filtration through aeration. It runs on 220–240 V, 50 Hz.
Key specifications
| Parameter | Value |
|---|---|
| Type | internal submersible filter |
| Tank volume | 40–60 l |
| Flow rate | 208 l/h |
| Power | 5 W |
| Head height | 0.35 m |
| Mounting | 4 suction cups |
| Power supply | 220–240 V, 50 Hz |
Pros
- Compact. Does not clutter a small tank.
- Economical. Just 5 W.
- Adequate flow. 208 l/h is about 3–5 tank volumes per hour for 40–60 l.
- Aeration. Adds oxygen to the water.
- Easy installation. Fixes with suction cups.
- Mechanical and biological filtration.
Cons and what to watch
- No details of the media. What sponge is inside and how to replace it is not stated.
- No filter dimensions. Hard to tell in advance whether it will fit.
- "Biological filtration by aeration" is a simplification. Bacteria in the sponge do the biological work; aeration just supplies them with oxygen.
- Strong flow for small fish. It may bother bettas and tiny fish.
- Extra text on the card. The description ends with a list of search keywords.
How to install
Unplug the filter before installing it. Fix it to the glass with the suction cups so the body is fully under water and the top sits 2–3 cm below the surface. Point the outlet along the glass to avoid a strong current in the middle of the tank. Only switch it on under water, as running dry can damage the motor. Do not rinse the sponge for the first few weeks while a colony of beneficial bacteria forms. Starter bacteria such as Tetra Bactozym speed this up.
Maintenance
Every 2–4 weeks, when the flow noticeably weakens, unplug the filter, remove it and rinse the sponge in tank water, not under the tap, or the chlorine will kill the bacteria. Do not replace the whole sponge at once; if it wears out, replace it in parts. A suitable replacement is the Resun 35 PPI sponge, which can be cut to size. For fine polishing of cloudy water, JBL Symec filter floss helps.
Which tank size
The manufacturer rates it for up to 60 l. For 40–60 l, 208 l/h gives 3–5 turnovers per hour, which is fine for most tanks with small fish. In a 20–25 l tank such as the Priroda 22 l, the flow will be strong, so for calm fish choose a weaker filter or point the outlet at the glass.
Biological filtration
The main job of removing ammonia and nitrite is done by bacteria living on the sponge and media. The more surface area they have, the more stable the water. Larger filters use bio balls for this, such as Resun Bio-Ball, while in a small internal filter the sponge does the job.
If the water is cloudy
Cloudy water in a new tank is usually a bacterial bloom that clears within a few days. If it persists, check that you are not overfeeding and, if needed, use a product such as JBL Clynol. More on setting up in aquarium for beginners: what to buy and how to set it up.
Safety
Unplug the filter and other equipment before any work in the tank. Leave a "drip loop" in the cable, hanging below the socket, so water cannot run along the cable into the socket.
Noise
Internal filters with aeration make a sound from air bubbles. If the noise is a problem, for example in a bedroom, reduce the air supply if it can be adjusted, or angle the outlet so bubbles do not burst at the surface.
Who it suits
The Resun Magi-200 suits small 40–60 l aquariums with small and medium fish as the main filter with aeration. Other equipment is in the fish equipment section.
Verdict
The Resun Magi-200 is a compact 208 l/h, 5 W internal filter with aeration and suction-cup mounting for 40–60 l tanks. The downsides are that the description gives no media details or dimensions, "biological filtration by aeration" is a simplification, the flow may be strong for small tanks and calm fish, and the card carries some irrelevant text.
FAQ
What tank size is it for?
Up to 60 l, ideally 40–60 l.
What is the flow rate?
208 l/h.
How much power does it use?
5 W.
How is it mounted?
With four suction cups on the glass.
How should the sponge be cleaned?
In tank water, every 2–4 weeks.
Does it aerate?
Yes.
Is it suitable for 20 l?
The flow will be strong; a weaker filter is better for small tanks.
