Grässlin Automatic feeder rondomatic 400

Grässlin Automatic feeder rondomatic 400

  • Feeding according to schedule
  • Suitable for many types of feed
  • Easily commissioned
  • 28 feeding bowls
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The Grässlin rondomatic 400 automatic feeder provides living creatures in an aquarium with individualised food. 28 feeding bowls arranged in a circle allow individual feedings to be carried out daily for up to four weeks during holidays or to adapt the daily feedings to the biorhythm of the fish.
The feeding chambers can be put directly into the dishwasher for cleaning.

There are two different options for attaching the automatic feeder to a standard aquarium. The rondomatic 400 can stand on its own and therefore be placed on a flat aquarium cover so that the point of the feeding bowl ring where the respective bowl tilts downwards comes out above the feeding flap in the cover. If there is no feed flap, the cover can simply be held open a sufficient distance.
The automatic feeder can be attached to open aquariums using the mounting bracket and screw included in the scope of delivery so that it stands horizontally above the water.

Feeding can be controlled via the central timer. The enclosed switch tabs are pressed in according to the desired feeding times. Each switch tab triggers a feeding process, i.e. if 3 filling volumes are to be fed daily, 3 switch tabs must be pressed in accordingly.However, the shortest interval between two feedings is two hours.

This ensures regular feeding and the aquarium inhabitants are supplied at their usual times even when you are absent.


  • For regular feeding in the aquarium
  • Ideal for bridging holiday periods
  • With 28 individual feeding chambers
  • Chambers can be cleaned in the dishwasher
  • Suitable for open and closed aquariums
  • Built-in timer
  • Several feedings per day possible
  • Suitable for different types of food


To prevent the feeder from sticking, the manufacturer recommends an installation distance of 10 cm from the water surface or aquarium cover.

Technical data

Grässlin Automatic feeder - rondomatic 400
Filling volume per tray 3,5 ccm
Filling volume total 100 ccm


Grässlin Automatic feeder - rondomatic 400
Height total 45 mm
Diameter 165 mm
Height Feed tray single 46 mm
Width Feed tray single 40 mm

Scope of delivery

  • rondomatic 400 automatic feeder incl. power plug
  • 28 Feeding trays
  • Mounting bracket
  • Screws
  • Manual


The Grässlin brand develops and manufactures high-quality products in the fields of time switch technology, lighting control and operating hours counters. The development of automatic feeders with integrated analogue timers marks a further step in the history of the company, which was founded in 1956. Grässlin's products are characterised by quality and durability combined with well thought-out benefits.

General information

Item no.
EAN 4010940003364
Weight 0,69 kg
Shipping weight 0,85 kg

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