are kept in water of good quality with, inter alia, an adequate flow and exchange rate, sufficient oxygen levels and keeping a low level of metabolites;
tabharfar uisce ar cháilíocht mhaith dóibh lena ngabhann, inter alia, ráta leordhóthanach srutha agus malartaithe, leibhéil ocsaigine leordhóthanacha agus lena gcoinnítear leibhéal íseal meitibilítí;