Thanks for all the info. and I have to say the coloration on that Dat in your first pic is amazing, his base really looks yellow. Every Dat I had was always beige based some lighter then others such as the one I have pictured who happened to be the lightest based Dat I've had to date, there where days where he looked almost white with black stripes.Honestly, Ive had a few.
My current 3/3 is always stable, he was stable when i bought him and Ive never seen him black . He is about 8 inches now was 6 or so when i got him. When he was in the 210 he got beat on pretty good by some cichlids. now in the 500 he has no issues. always stable. There are no other indos in the tank just a small NGT.
My last 2 I had together got them at about 3 and 4 inches. 4/4 was smaller 3/3 bigger and dominate. 4/4 was always stable . 3/3 which strollo bought at around 7 inches btw was hit or miss... Never constant either way. They lived in the same 210 my current one did with the same tankmates. He would actually get more stable when other fish would stress , wc etc. He never got stable for strollo either i believe.
4/4 I wound up trading into LFS at 7 inches or so , even in the lfs in a ten on a system he was stable till the day they sold him.
My tanks are not bare as i believe fish need to feel safe to thrive... they are usually busy with other fish moving etc.
I truly do not believe there is a way to manipulate... I do believe if you get a stable one it is likely to stay stable....
I respectfully disagree about us not being able to manipulate a Dats stability though. As I said since stability is their natural coloration I believe there's something we must be doing that causes the instability. So I believe it's a logical assumption to believe that if we can make them unstable we should be able to influence them to be stable. Much like their breeding I think it's just a case where the factor has eluded us.
I will say it's interesting to note that strollo's hypothesis of Indo Dat's being more likely to be stable where they're the only Dat of that species in the tank may be of merit. Thus far in the thread I've always had stable Indo Dat's and never kept more then one Indo at a time, though I did mix the Indo with Silver Tigers/AT's. In the experiences you've mentioned here the Indo you kept with a NGT was stable and the 2 Indo's you've kept together one was stable and one was hit or miss. So perhaps that's one of the factors in having a stable Indo.
I think you maybe on to somethings as I mentioned in the post above. Perhaps more then one Indo per tank influences Indo's to take on Dominant and Subordinant coloration, while mixing species doesn't create the same cue. I personally still think the other environmental cues can influence stability but perhaps thus far you've hit on a more definitive influence based on what's been shared.Good information guys. I've always leaned towards the environmental factor as a key to stability but never tried it. I'm going to go buy some fake plants tomorrow maybe and start to work on it and see what happens. And Fyi Jay- that 3/3 has been 1000% stable by himself in Lorenzo's tank. Further proving my theory that an indo by itself will always be stable.
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So if I'm understanding your post you've kept multiple Indo's at a time and all where stable? Just trying to get a clear picture as thus far I know your saying your Dats where stable and you always provided them a retreat but am unsure if your saying you've kept multiple Indo's at the same time and all of them where stable while cohabing.My opinion is the fish is not comfortable in its tank. I know they can get bullied by other Dats. I have owned a few Dats all the ones I have ever had never showed what you all call unstable stripes. I think a lot of you keep them in bare tanks. I know mine always liked to hide they liked hiding places made them feel secure. I know when they got scared or when I netted them to move them there stripe went pale. But once settled there stripes went back solid.