What should I dose my macros?

[joekidwell]

Hey everyone, I'm starting a nano macro algae tank. Its a lifeguard Aquatics 4.1. I won't have any livestock in this tank but I was wondering what are some supplements I should have on hand. I already have iron and nitrates, will waterchanges take care of the rest?

What is a good green macro that won't completely take over this tank or go sexual?

9 years I've been growing dragons breath and string of pearls macro in my main tank they grow slower than the green macros so I'm really looking forward to some color diversity.

 

[Spare time]

I've had luck with chaetogro.

As for macros, I like any gracilaria, codium (monkey / dead mans finger), and such. Blue hypnea looks cool.