I've ordered 2 plants, dwarf baby tears (HC) and dwarf hair grass. I'd like to use the dwarf hair grass as a background plant and hopefully it'll grow nice and tall to cover the back of my 2.5 gallon tank. The HC will be used as a foreground plant. both plants will be here tomorrow and I'll be growing them immersed for probably 2 weeks so that the HC can develop a nice root system. Eventually however I will have to add water and fill up my nano tank. So my question is about fertilizers. The tank is a 2.5 gallon minibow which will be cycled. It's got a red sea deco art nano filter, a heater, a 15 watt light bulb, and will have DIY CO2. So what should I do for micro and macro ferts? My water is extremely hard to the point that I get calcium deposits on the hood and aquarium decor. Also is my light high enough for these plants? I have flourite for my substrate (biggest pain to wash). Thanks for your help! I've been reading up and tried the calculator to determine how much powdered ferts to add but I'm still a bit lost!