not alot of growth

[pa reef pig]

could having very few nitrates cause my caulerpa to not grow?

 

[worm]

would seem logical. my nitrates stay around 10 and my caulerpa is growing very slow, too.
is yours in the main tank or a refugium? i don't have a refugium yet, mine is in my main.

 

[j21kickster]

Yes, if you do not have any noticible nitrate levels your caulerpa will not grow well, and nitrate is required for growth, this is why caulerpa lowers nitrate. Strong lighting also helps

 

[pa reef pig]

yes mine is in the refugium. I guess its a catch-22. Id like to grow caulerpa but Im totally happy having undetectable nitrates!

 

[pa reef pig]

I just got my mini-grape from bang guy yesterday. I increased the hours on the lighting over the refugium. Is it ok to have the lights on for 16 and off for 8? Is that enough to keep it for releasing its spores?