I have the Hanna trimeter combo; the one that you plug into the wall and it has lit lcd screens for ph, ppm, and temperature of the reservoir and it has been doing well for me. I do agree that the cheaper Hanna products are definetely not worth buying
cmasfca Reviewed by cmasfca on . Wierd yellow and Brown Spots Please Help These Clones are about 3-1/2 weeks old, still in veg 24/7 schedule. Half are in Bio Bizz Coco mix with perlite and the other half are in some Premier shaphnum peat moss with perlite and some dolimite lime. They are both showing the same spots so I dont think its soil realted. I am feeding them Botanicare Prow Grow, Liquid Karma, Cal-PLus Grow from advanced, with R/O water. They get feed every 3-4 days when the pot feels dry. I have been trying to give them 2 normal strength feedings and then 1 Rating: 5