Fair enough, it's most likely just a European product - I just googled orchid forum, not checking the provenance of users.

Baby bio is a brand name for various plant foods, manufactured by Bayer. You add 5-10 drops of baby bio to half a litre of water and you use it each time you water the orchid, so not often. However they also do little bottles, around 40 mL, which you snip the top off and insert in the pot and this will drip feed the orchid for around a month. I did this for a spent orchid and it grew a new flowering shoot in next to no time! Could be coincidence, or some other factor. Anyway I was hoping to pipette the big bottle into a feeder as one drip feeder costs half the price of the big bottle (175 mL) - if it has to be diluted the savings are even greater.

Sorry for the inadvertent advertising - other brands are available - indeed the drip feeders I have are of a different make!

Sorry I couldn't help. Maybe there are some people on this forum who have tried it.

Jane

I have never seen these before either. I don't see how a drop feeder would work in an orchid set up. I would think the drop would run down the side of the pot and out the bottom.

I agree with James. Most bottle/drip watering depends on capillary action to disperse it and orchid mixes aren't likely to provide that.

tj

Orchids have become more ubiquitous than house plants in the UK, and perhaps even cut flowers. Perhaps as they are much easier to look after than the other two. Forgetting to water isn't really an issue! They are sold in supermarkets, DIY stores, florists, garden centres and so forth. This has led to a variety of drip feeder brands available here in the UK, so they must be providing a need. The drips come out so slowly, that flushing straight through the orchid compost doesn't happen, it's too dry for that. The key is to position it close up to the roots I'm guessing.
Anyway, thanks for your help - the more I think about it the more likely it is that my original drip feeder was at full concentration, owing to how slowly it delivers compared to feeding via watering.

@User I read this today as I was wondering the same thing. Did you use the concentrate neat in the drip feeders or did you dilute it? If it is diluted then the single-use plastic feeders are quite a rip-off. That makes me want to refill the little things even more!

Generally speaking...I like my phalaenopsis to dry between waterings, and then I water with 3 different types of fertilizer, and the 4th watering I take them to the sink and flush them so salts don't build up...everyone does it differently, but our orchids all live! Just find what works for you...orchids are very forgiving!