charlie Posted June 19, 2004 Share Posted June 19, 2004 But if you have too high a level of nitrate - some macro will not take it well - they will also turn sexual. As for PO4, usu a certain small amount of PO4 is used by the macroalgae but not sufficient to use it solely for PO4 removal. On the other hand if PO4 reached zero - the macro aglae will turn sexual- not sure how true this is as I have get rid of the culture. Maybe somebody like to share their experiences. I believe there are other better alternative to Caulerpa racemosa like Chaetomorpha and Gracilaria. A few reefers are using Chaetomorpha - they are generally safer as they do not turn sexual so easily. Hi Btw can the macroalgae Chaetomorpha and Gracilaria be grown in the main tank? or need to grow it in the sump/Refugium? and wil Chaetomorpha and Gracilaria grow very fast? Thanks Quote Link to comment Share on other sites More sharing options...
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