Very sorry to hear you lost the tig
I did know what was going to happen after you told us what was wrong
I know a tig is not a cheap fish to lose but please don't give you keeping one
My advice would to get another larger if poss then try to to use all the tips I hope were helpful
Lots and lots of air
Temp 86
No sea foodsw until it gets to 12inch
Feed hikari sinking carnivor pellets
Don't feed it until it's real fat and make it work for it's food
They are a very classy cat and by fast my fav cay
Don't let the loss put you off