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. 2024 Sep 17;14:21668. doi: 10.1038/s41598-024-72550-5

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — Experimental set-up of feeding trials. Illustrated is a single experimental tank (tank size: 27 cm × 27 cm, corners (banded) serve as water in- and outflow to maintain water quality and connect the tank to the filter system) with a permanent shelter (up-side-down flower pot, 4.5 cm lower diameter). The bottle (without predator, bottle: 7.6 cm diameter, bottle area: 11.2 cm), including the feeder (food tablet (Tetra WaferMix) and clamp, feeder area: 4.5 cm diameter), was introduced at a standardized position into the tank during feeding trials.