I've been using a couple of Tunze pH meters (they're really controllers) for the past six months and they've stood up to all sorts of abuse;-), they just keep ticking away. The only real problem is that the probes can be a little delicate (this is by nature, you can't really make them much stronger). I've been very happy with mine, even though it's about double the cost of a Hannah meter. I'm thinking of putting in one of the professional pH controllers that Hannah sell into my next house/fish room. These go from 5-20 times the price of a basic meter, but they allow multi-tasking/multi controlling ;-), really serious stuff, but beautifully made. As far as kits are concerned, I use aquarium pharmaceuticals' kit, what do you lot all use? C:-)lin > More to the point, who has one that lasts. In the last year I > have tried both > the Hannah pHel meter from Hannah Instruments and the PINPOINT pH > meter from > American Marine ___________________________________________________________________ Consigue tu e-mail gratuito TERRA.ES Haz clic en http://www.terra.es/correo/ ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. Search http://www.digital.com for "Apistogramma Mailing List Archives"!