Maintaining optimum conditions for embryo incubation is a critical consideration in finfish aquaculture. To this end, prophylactic disinfectant protocols have been widely used in culture practices for many finfish species. However, empirical evaluations of safety and effectiveness for disinfectants in ornamental fish species are uncommon. We evaluated hatching success in embryos of four ornamental fishes (Redtail Sharkminnow Epalzeorhynchos bicolor, Rainbow Sharkminnow E. frenatum, Featherfin Squeaker Synodontis eupterus, and Blotched Upsidedown Catfish S. nigriventris) after a 15‐min immersion in one of three common disinfectant solutions: formalin at 1,500 mg/L, iodine at 100 mg/L, and hydrogen peroxide at 1,000 mg/L. A 15‐min immersion in hatching water served as the control. All disinfectants were administered according to either the manufacturer's recommendation or protocols found in published literature for other species. At the tested concentrations, hydrogen peroxide and formalin can be safely used as prophylactic treatments for the majority of species evaluated, with no detrimental effects. In addition, Redtail Sharkminnow embryos treated with formalin exhibited numerically higher hatch success with less variation among replicates than the control treatment. For all species, a 15‐min immersion in 100‐mg/L iodine resulted in significantly lower hatching success when compared with all other treatments.

中文翻译：

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三种胚胎消毒剂对四种淡水观赏鱼种成功孵化的评价

维持鱼类孵化的最佳条件是有鳍水产养殖的关键考虑因素。为此，预防性消毒方案已被广泛用于许多鱼类的养殖实践中。然而，对观赏鱼中消毒剂的安全性和有效性进行实证评估并不常见。我们评估了四种观赏鱼（Redtail Sharkminnow胚胎孵化成功Epalzeorhynchos双色，彩虹Sharkminnow E. frenatum，真翼歧须鮠Synodontis eupterus和斑点颠倒鲶鱼S. nigriventris）在三种常见消毒液之一中浸泡15分钟后：福尔马林1,500 mg / L，碘100 mg / L和过氧化氢1,000 mg / L。浸泡在孵化水中15分钟作为对照。根据制造商的建议或已发表文献中其他物种的规程，对所有消毒剂进行管理。在测试浓度下，过氧化氢和福尔马林可以安全地用作大多数被评估物种的预防性治疗，而没有有害影响。另外，用福尔马林处理过的Redtail Sharkminnow胚胎在数值上实现了更高的孵化成功率，与对照相比，复制之间的差异较小。对于所有物种