10 Gallon Tank Quarantining Peacock Gudgeons - Change In Behavior

Madchild57

I am currently quarantining 3 female adult peacock gugdeons in a 10 gallon tank. I've had them for 3 weeks at this point. Unfortunately, 2 weeks ago I had an ammonia spike that killed the steel blue apistogramma I had in there quarantining with them. This spike stemmed from a power outage that killed my filter bacteria since I was so focused on my main tank. Water quality is not an issue now so it's not from that.
Ever since the apisto died, the gudgeons (who were unaffected by the ammonia) became very scared of people, very lethargic, and were unexcited by food. They've improved in the food category, as they'll eat, just not when I'm around. They also lay around all day and hide. The laying I know is normal since they're basically gobies. One of the gudgeons in particular is always in a cave and rarely ever comes out.
I have a peacock gudgeon in my main tank, a juvenile female. She also is pretty reclusive but when the tank gets rowdy before feeding time she pops out and is energetic, until she's done eating and slinks back into her cave.
So I know being reclusive is a gudgeon trait, but these 3 in quarantine experienced such a dramatic behavioral change when the apisto died. They used to be very outgoing and now they're shy, slow, and won't eat around me. Is it just because the apisto died and now they don't have any worries about being chased away when it's being territorial? Is it something infectous? It's just strange they choose after the ammonia problem to start acting weird, not during it.
 

jkkgron2

It could be a disease, but I’ve noticed my peacock gudgeons do much better when I have them with some outgoing fish to help draw them out. Maybe they’ll perk up once you add them in with other fish?
 
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Madchild57

It could be a disease, but I’ve noticed my peacock gudgeons do much better when I have them with some outgoing fish to help draw them out. Maybe they’ll perk up once you add them in with other fish?
Yeah that's the hope, I just want to ensure it's not a disease before I do that. They don't look any different, they all have very bright colors, especially orange on their stomach region.
Part of me thinks may the dynamic with the apisto was making them move more and such. It wasn't until I did my water changes to remove the ammonia that they started acting strange. They were in 1 ppm ammonia perfectly fine but when I changed the water it's like they shut down and have been that way for 2 weeks now.
EDIT: they're acting similar to when I had 3 tetras in quarantine to add to my school but the only difference is the gudgeons were outgoing at one point.
 
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jkkgron2

Yeah that's the hope, I just want to ensure it's not a disease before I do that. They don't look any different, they all have very bright colors, especially orange on their stomach region.
Part of me thinks may the dynamic with the apisto was making them move more and such. It wasn't until I did my water changes to remove the ammonia that they started acting strange. They were in 1 ppm ammonia perfectly fine but when I changed the water it's like they shut down and have been that way for 2 weeks now.
EDIT: they're acting similar to when I had 3 tetras in quarantine to add to my school but the only difference is the gudgeons were outgoing at one point.
Was the apisto an outgoing or aggressive fish? My male peacock gudgeon that I currently own became much more outgoing once he was added to my 40 breeder community tank that has a couple semi-aggressive fish, so it’s possible that the threat of other fish was what made them more active.
 
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Madchild57

Was the apisto an outgoing or aggressive fish? My male peacock gudgeon that I currently own became much more outgoing once he was added to my 40 breeder community tank that has a couple semi-aggressive fish, so it’s possible that the threat of other fish was what made them more active.
It was a male so it would chase them if they got close. They also mainly ignore food when I put it in which is odd for gudgeons but if I let it sit for a few hours the food disappears so at least someone is eating. I feed frozen brine shrimp because they don't really recognize bloodworms as food but they loved the shrimp.
 
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jkkgron2

It was a male so it would chase them if they got close. They also mainly ignore food when I put it in which is odd for gudgeons but if I let it sit for a few hours the food disappears so at least someone is eating. I feed frozen brine shrimp because they don't really recognize bloodworms as food but they loved the shrimp.
Sounds like they need some other fish to feel comfortable. How much longer will they be in quarantine?
 
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Madchild57

Sounds like they need some other fish to feel comfortable. How much longer will they be in quarantine?
Typically they'd be in today (3 weeks) but I am a bit apprehensive..
 
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jkkgron2

Typically they'd be in today (3 weeks) but I am a bit apprehensive..
It might be a good idea to wait a few days. Even if they don’t eat for a few days I think they should be fine provided they’re not sick.
 
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Madchild57

It might be a good idea to wait a few days. Even if they don’t eat for a few days I think they should be fine provided they’re not sick.
Thanks for your help. I'm hoping they're not sick, but the change from before and after the apisto was so sudden I'm thinking it's due to them being alone.
jkkgron2 today they all ate, they each had 1-2 brine shrimp then more or less stared at the rest. I have one that always hangs out in this cave that formerly belonged to the apisto so I was thinking it might be a male? It's also the only 1 of the three without the orange stomach region. However it doesn't have the hump and has the black fin bar.
 
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