Jim S wrote:

I put two Tumblers in my 2 plant growbag before realising that
the watering/feed instructions are on the bottom. Does anybody
know what it says?

https://www.lovethegarden.com/file/51876/download?token=ziHzu0ip

Or if that PDF link doesn't work (looks like it might expire)

https://www.creativegardenideas.co.uk/blog/growing/how-to-use-tomorite-grow-bags