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Because it is more likely to be found in veterinary hospitals than other traditional anesthetics for fish, its value as an anesthetic for other species of fish should also be considered. We found that vitamin C is an essential nutrient for an Amazonian ornamental fish, the oscar (Astronotus ocellatus). Other physiologic or blood gas variables did not change significantly.Īlfaxalone should be considered as a readily available and easy-to-use anesthetic for oscar fish. Median lactate concentrations were significantly increased in all anesthetized fish. There was no significant difference in HR over time. There was a significant difference in OpR over time, with respiratory rates significantly decreasing between baseline and anesthesia and then significantly increasing between anesthesia and recovery. It requires a very brave person to keep them. Mean ± SD induction time was 11 ± 3.8 minutes (minimum, 5 minutes maximum, 15 minutes), and mean recovery time was 37.5 ± 13.7 minutes (minimum, 20 minutes maximum, 55 minutes). Oscar Fish Guide: (Care, Breeding, Food, Tank Mates, Life & More) It has been observed that Oscars are infamous for the aggression in their behavior as they are known to swim very gracefully that you can’t even imagine. Immersion anesthesia of oscar fish with alfaxalone (5 mg/L) was sufficient for collection of diagnostic samples in all fish. The HR, OpR, response to noxious stimuli, and positioning in the tank were evaluated, and blood samples for blood gas analysis were collected before (baseline), during, and after anesthesia. Water temperature was maintained at 25.1☌, and water quality was appropriate for this species. To evaluate effects of alfaxalone on heart rate (HR), opercular rate (OpR), results of blood gas analysis, and responses to noxious stimuli in oscar fish (Astronotus ocellatus).Įach fish was immersed in water containing 5 mg of alfaxalone/L.