Resun AF-2009D is an automatic feeder for aquarium fish that helps when you cannot be at home all the time. It can be programmed for 1–4 feeds a day, which matters for small fish that need frequent feeding. Any type of dry food is suitable. It runs on two 1.5 V batteries and comes apart into a drum with a lid, a head unit and a bracket. The drum is in two parts to reduce clumping and keep the food dry. According to the description, programming is easy even for a beginner. The body is plastic, and the feeder mounts on a lid or tank wall up to 25 mm thick.
Key specifications
| Parameter | Value |
|---|---|
| Type | automatic feeder |
| Feeds per day | 1–4 |
| Food | any dry food |
| Power | 2 × 1.5 V batteries |
| Drum | two-part, with lid |
| Mounting | on a lid or wall up to 25 mm |
| Material | plastic |
Pros
- Up to 4 feeds a day. Handy for small fish and fry.
- Any dry food. Flakes, granules, crisps.
- Two-part drum. Less clumping and the food stays dry.
- Battery powered. No socket needed nearby.
- Simple programming. An interface a non-expert can use.
- Versatile mounting. On a lid or wall up to 25 mm.
Cons and what to watch
- Drum capacity not stated. It is unclear how many days the food will last.
- Portion adjustment not described. How to set the amount is not explained.
- Battery type not given. Only the 1.5 V voltage.
- Flakes may cake. High humidity above the tank can cause this even with a two-part drum.
- Dry food only. Live and frozen food cannot be dispensed.
How to mount and set it
Fix the feeder with its bracket to the lid or tank wall so the drum opening is above the water but not too close to it, as steam and splashes dampen the food. Fit the batteries and set the time and number of feeds. Fill the drum and do a test feed: see how much food comes out at once and reduce the portion if needed. Before going away, check that the feeder works for a few days while you are still at home.
Which food works
The feeder works with any dry food, but granules and small crisps work best because they flow evenly and cake less. Suitable options include TetraMin Granules or TetraMin Pro Crisps. Flakes such as TetraMin can also be used, but watch that they do not jam.
How not to overfeed
The main risk with an automatic feeder is overfeeding: excess food settles on the bottom, fouls the water and fuels algae. It is better to give too little than too much, as healthy adult fish cope well with a few days of modest rations. The rule is that fish should finish a portion in 2–3 minutes. More in aquarium fish food: how to feed.
Before you leave
A few days before leaving, change some water and clean the filter so the tank is in good shape. Fit fresh batteries. If you are away for a long time, ask someone to check that the feeder is working and the water is fine.
Which tanks
The manufacturer says the feeder suits tanks of any size. The main condition is being able to fix it to a lid or wall up to 25 mm thick. On open tanks without a lid, such as the Priroda 22 l, it clips onto the glass.
Fry and small fish
Small fish and fry need more frequent, smaller feeds, so up to four feeds a day is especially useful for them. For fry, use fine food such as TetraMin Baby, but check that it flows evenly from the drum.
Care
Empty the drum now and then and wipe it with a dry cloth so food does not cake or go mouldy. Change the batteries early rather than waiting for them to run flat.
Who it suits
The Resun AF-2009D suits aquarium owners who go away for weekends or business trips, and those who want to feed small fish several times a day on a schedule. Other products are in the fish and fish equipment sections.
Verdict
The Resun AF-2009D is a battery-powered automatic feeder with up to four programmed feeds a day, a two-part drum and mounting on a lid or wall up to 25 mm, for any dry food. The downsides are that the description gives no drum capacity, portion adjustment or battery type, and flakes may cake in humid air.
FAQ
How many times a day does it feed?
1 to 4 times.
Which food works?
Any dry food, granules work best.
What powers it?
Two 1.5 V batteries.
How is it mounted?
On a lid or wall up to 25 mm thick.
Can it dispense live food?
No, dry food only.
How many days will the food last?
Drum capacity is not stated; it depends on portion size and number of feeds.
What is the body made of?
Plastic.
