It usually changes, I never wanted the test kit, or the filter, but noticed they were doing the new heaters and I could do with a good one for my 5ft'er so thought, yep that will do and finally subscribed
It is a great magazine and if you subscribe they send you a free gift,either a heater or water test kit.I recommend it, lots of interesting articles.They also have a website.
woohoo i just subscribed to practical fish keeping thing, and on the bauer website for magazine subscriptions the offer at the moment is either the fluval e-series heater, or a fluval u2.... i opted for the fluval u2 as thats perfect for my tank and i wudnt mind having my current fluval 2plus as a standby