I am planning to buy the AI Prime HD light for my biocube 14g, but i saw that the Hydra 26 is just 100$ for expensive. My question is, in the future when i upgrade to 50G or something around 60g, would this be enough or would i have to buy another? I know with the Prime, id have to get two of them.. but If i don't have to get two Hydra 26, id rather buy this now and invest for future 




