March 14 through 19, 2015: our colleague Olivier Berteloot attended the SETAC YES conference at the Petnica Science Center in Serbia. Olivier presented his recent research on ‘the influence diet quality on the chronic toxicity of copper to the freshwater snail Lymnaea stagnalis’. He demonstrated that L. stagnalis individiuals fed with lettuce were significantly more sensitive to copper in comparison with fish flake fed L. stagnalis individuals, thus confirming the importance of standardized culture and test protocols for (regulatory) toxicity testing.