Fertilizer recommendation

[kimmyB]

Hey Everyone !

First day on the forum so let me know if I don't do things the right way.

I'm not super new to orchids (3ish years now) but my collection has expanded a bit over the past year. I've been using the MSU fertilizer from repotme and many of my orchids my older ones in particular) seem to like it (on the rest, I haven't noticed much difference but that could be because I haven't had them long enough.

However, my wallet is honestly hating me at the moment so I'm on the market for an alternative. I know quality isn't cheap (and I'm not trying to cheap out on my babies, I swear lol) but I'm hoping someone might have a recommendation for a fertilizer that has worked for them that might be a bit kinder to the wallet than repotme.

My follow-up/bonus question is whether I should continue using tap water (we get ours from the Tennessee river and it's worked well so far) or switch to filtered water. I've been considering switching but was wondering if there are any potential downsides to doing so.