Sol, I recently had the tail grow back on one of my silver hatchets in my 10g shrimp tank. No idea who/how it happened, but one day I noticed it wiggling
I agree with Freshy. You should just go with a 10 gallon. it will be more fun to work with (aquascaping, cleaning, filter and light selection) you have
I wish I knew what happened, I hope I didn't somehow do it while netting the fish.
Just netted and acclimated a few giant danios, one jumped out during the process, got him back, he's ok, then my fiancee pointed out that one has no tail.
Plant says yummy... Apparently its getting over its transplant shock and starting to grow.