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Thanks for the reply @fullabeans
That’s a really cool app!
I don’t think these fish are Bowfins though. The Bowfin has a very similar body shape and fin arrangement, but the juveniles have very different colouration.

With the flourescent stripe on the fins and its translucent skin you might be right about it being a gudgeon or a goby

Congratulations @fullabeans
You are the winner! I will send you your reward shortly.

Under the conditions you set out, I guess that fullabeans does get the reward, which is a bit spurious as they were not even close to close in their identification of this fish, which is worse than not commenting at all.

They all look so similar, but i’m yet to find a definite match. Sometimes I wonder if it’s an unidentified species.

No, it is definitely an identified species. It is an Empire Gudgeon, I have kept hundreds of them in the past. Bred most of mine myself.

Not even close to similar. The gudgeon has a tin dorsal arrangement to the fins, the bowfin one single, long dorsal. The caudal fin and perduncle, completely different, the body shape not even similar. And then we look at the gudgeons long, singular anal fin.

How could these two even be compared?

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