I (and many others) make tank dividers out of egg crate light diffuser sold by Lowe's, Home Depot, etc. in 2'x4' sheets.
It can fast 1-2 months easy, starting from healthy condition.
You could try live black worms or nightcrawlers too... but I've never had a tig (I've had 7) that didn't cave and take fish pieces within a week or two.
If it's longer than that, I'd become concerned that something else might be bothering it.
It can fast 1-2 months easy, starting from healthy condition.
You could try live black worms or nightcrawlers too... but I've never had a tig (I've had 7) that didn't cave and take fish pieces within a week or two.
If it's longer than that, I'd become concerned that something else might be bothering it.