Here is a guide on how to get the “Fish Tank Mega-Hoarder” Badge!
You would’ve had to have bought all of the recent Fish Tanks in order to get this badge.
It shows that you’ve bought all of them and it’s also a Limited Edition Badge which only 23 people (at this moment in time) own!
It would have cost 350c + 350 Diamonds to get all of these Fish Tanks!
This is the badge: