Kellurin

After some digging, it seems the best/safest thing to do in this situation is to contact Digital Extremes support and explain this in a support ticket. They haven't got a support category for this exact situation but I'd say maybe file it under My Account > Update Account Information. Making a purchase with a different currency may work as expected but do so at your own risk. I found a few old (2 years+) cases of this working fine, however, the last thing we'd want is for you to be wrongly accused of fraud and have your account restricted. Play it safe and make a query about it with support first.

The Dullahan helmet and Dog days ephemera both costed 1 credit and 1 nakak pearl respectively because of their temporary nature. The 'Soaker' ephemera is the fish one you're referring to and i don't believe thats a temporary one since it costed more than a few hundred pearls iirc. They also did not explicitly mention that the soaker ephemera was leaving.

I believe Connla Sprout might only be found near to the large water feature north of Orion Tower. I haven't seen it anywhere else. @RobWasHere

Can you list the ingredients you need? I believe different adapters may require different ingredients. All I know for sure is that they all require 20x Pathos Clamp to make