Spec's: tank is 10years old running 6x T-5 overdriven, closed loop with 3 penductors on Iwaki 70 for flow, hugh Skimmer and levels are at ZERO... except phosphate @ 0.3 on hanna meter. Im feeding brightwells foods 2x a day. I have great color but very slow growth and almost no polyp extention?? Looking for help?? Thanks cal 430 mag 1330 dkh 10 ph 8 salinity 0.26 temp 79
I would take a look at a couple of options. What fish do you have? Do you have red bugs? The latter can be very difficult to see but the first symptom is a lack of polyp extension. Look very, very closely at some of your lighter colored acros. The light color background can make the bugs easier to see. You may see tiny little dots crawling around which would indicate red bugs.
The old school way was to keep alk super high but in my opinion it isn't necessary in todays day and age. I believe the coral would prefer to be closer to their natural range. That said I don't think it is your issue in terms of polyp extension.
Quote:
Originally Posted by jakem
I thought 7-12 was ok?? I will check into this. Thanks
sps polyp extention? 
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