So my darling new betta passed away this morning (or sometime last night)
I barely knew him :(
He was only in his tank 2 days before passing (meaning it's generally pretty clean)
Before I get a new betta what do I need to do with the tank?
Does it require a complete cleaning/water change before introducing a new fish even though the water is only really 2 days old?
I have not turned the filter or heater off even though there are currently no fish in the tank.
What should I do before bringing home a new betta, i don't want the same short life for the next one