Why is Fish bad in T1 right now? Because nonbasics are just not good anymore with Crucible and Strip effects running rampant. Enough decks are running enough duals that Back to Basics would hurt them more then a 2/1 flier.
Maybe I should drop Stasis for Tangle Wire, which can set up the B2B lock easier and let's me attack through it.
The simple reason why fish is bad - is because the decks that it beat effectively, are no longer ran. Decks that either out race, out beat, or out control it right now replaced them - most have a combination of the three (if not all). The sad thing with Fish is it was a budget deck, and budget decks have a tendency not to last very long in out format.
As for the Back to Basic principle - all though well placed for todays Meta, most decks are prepared for it.
And well Stasis - you cannot support it - reasons all ready covered.
The Tangle Wire idea is not bad, but it fades, and you do not have a way to 'revive it'. Null Rod is probably still one of your best solutions - as well as a personal favorite of mine: Imi Statue (combine that with Tangle Wire and you have some fun

)