I have started dosing my planted tanks with ferropol liquid fertiliser, but the bottle doesnt say how often I should be dosing, how long do you thing until I start seeing obvious results?. My tanks are both low tech with yeast co2. The plants I have are doing well but I want to see more growth (I do plan on getting a proper c02 unit for the big tank...when I can save up!!) should I be adding anything else, I have no probs with algae (yet?!) so im dubious to over fert. Both tanks are over a year old. cheers guys. :?