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Best way to introduce juvenile Asfur angel with other established juvenile angels? (1 Viewer)

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Mandarin417

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Right now I have 3 fish in the main tank that are all around 3-3.5”.

Juvenile Regal
Juvenile Scribbled
Tomini Tang

The gang of 3 get along well after 4+ months in the tank. Early sparring stopped 45 days ago.

I have a 1.75 “ juvenile Asfur angel ready to come out of observation QT and to jump into the main tank. The tank is a bit over 120 gallons with a lot of rock and invasive soft corals. Bigger tank coming in the next 6 months since these angels will grow out of this tank pretty quickly.

My experience with tangs is that they always bully new comers so I will probably isolate it in an acclimation box for a few weeks.

Dropping the smaller Asfur in after the lights go out would probably still result in a lot of beating up by the other angels. Acclimation boxes start growing algae blurring the view so I don’t think putting the Asfur in one will keep it visible enough in the long run for the other angels to be accepting.

Maybe I should catch the 2 angels, put them in my QT tank, see how they get along with the smaller Asfur, forget about their old home nooks and crannies, bond and then put them back in the main tank. Or I could flip tanks and put the smaller one in the display tank, put the gang of 3 in the QT and then bring them all together in a few weeks. What do you think?

My QT is an Ikea brand white tub, with around 12 gallons of water in it, some live rock, some PVC hiding tunnels, an ATO, an overkill protein skimmer that I have on hand for another startup tank, 2 heaters, a couple of small circulation pumps lit with a screw-in LED lamp. I change out a gallon of water a day and choose not to medicate unless something develops.

I start out new fish in the QT at the same salinity as their source and over time, change out the QT water with the display tank water for acclimation during the QT period. I also fashioned a makeshift filter on the intake of the skimmer so no fish drift in when sleepy and get sucked to death. It happened once. I also put a light diffuser grid on top of most of the QT since I have had a beautiful fish jump out during the last night of a 90 day QT period and dry up. Oh, and I have redundant heater controls and temp probes with loud alarms. I cooked a pair of juvenile angels last year when my temp probe fell out. The probes on this tank are secured with drip line holders and very secure. Finally, I have a power off alarm on the electrical strip for the tank. I have tried to be as fail-safe as possible as a result of bad past decisions. I hate losing fish for any reason especially when I am at fault.

Love to hear your recommendations on the introduction.

Bob
 

Humblefish

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I would try an acclimation box for a few days, as that would be easiest. Or you could section off a part of your tank with egg crate or something (if feasible).

Juvenile Angels are no where near as aggressive as adults, so you've got that on your side.
 
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Mandarin417

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Thanks for the advice Humblefish and David. I am OK with the acclimation box but the real proof is when the fish comes out of the acclimation box to see how the other tank inhabitants react. Given my rock structure, it's hard to catch the little one in the system when it's being chased. That why I thought maybe some of the other methods might be work a try. I update my approach and it worked out.
 
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