Psychedelic goby help!

[berner530]

Hello everyone I’m wondering if anyone has had any signs of aggression with their psychedelic goby bullying other fish. I purchased a 2 spot goby today for my 60 gallon breeder tank and have seen my goby attack the new 2 spot. He’s been such a sweetheart in the tank and has never shown any sort of aggression until today anything I should do or is this just something that happens??

 

[Lasse]

I assume that you meant Synchiropus picturatus. Its not a goby - it is a fish that belong to the family Bleninidae. Never the less - in an aquarium both your old and new fish inhabit the same ecological nish - they are both benthic with the difference that the two spot goby (Signigobius biocellatus) prefer sand and the other rockwork. You old fish se your new as an intruder and tries to consolidate its supremacy. Because that two spot goby is a sand dwelling fish and relies on protection through camouflage and looking like a larger fish - the two dots - it is an easily stressed species that is very difficult to establish in an aquarium. I have succeeded to establish another type of sand dwelling fish - probably from the genus istigobius in an aquarium there it was an established individual of scooter blenny - Synchiropus ocellatus - since many years.

The way I introduce my sand-dwelling species was through an adaption box for 1 week. IMO - the use of an adaption box when introducing new fish is more or less mandatory - I do it easy - use an old Guppy breeder box and two magnets (and a cover). The reason is - IMO - the new fish should have the same "smell" as the old fish before introduction - never the less you use QT or not. Since I start with this - I have very few losses when fish are introduced

Sincerely Lasse

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[berner530]

I assume that you meant Synchiropus picturatus. Its not a goby - it is a fish that belong to the family Bleninidae. Never the less - in an aquarium both your old and new fish inhabit the same ecological nish - they are both benthic with the difference that the two spot goby (Signigobius biocellatus) prefer sand and the other rockwork. You old fish se your new as an intruder and tries to consolidate its supremacy. Because that two spot goby is a sand dwelling fish and relies on protection through camouflage and looking like a larger fish - the two dots - it is an easily stressed species that is very difficult to establish in an aquarium. I have succeeded to establish another type of sand dwelling fish - probably from the genus istigobius in an aquarium there it was an established individual of scooter blenny - Synchiropus ocellatus - since many years.

The way I introduce my sand-dwelling species was through an adaption box for 1 week. IMO - the use of an adaption box when introducing new fish is more or less mandatory - I do it easy - use an old Guppy breeder box and two magnets (and a cover). The reason is - IMO - the new fish should have the same "smell" as the old fish before introduction - never the less you use QWT or not. Since I start with this - I have very few losses when fish are introduced

Sincerely Lasse

​

I appreciate the help!!