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ScottT1980 · 01-12-2004, 02:59 PM

Well, I have been trying to pinpoint this "ghost" in my tank for quite some time. My GSPs stay retracted quite a bit in my tank and have been doing so for the past couple of weeks. They have been extending their polyps maybe twice a week but most of the time they remain retracted. All my levels seem to be normal and all other tank inhabitants and corals seem to be doing quite well. In fact, the GSPs seem to still be growing.

So, what the heck could be my problem (I know, kind of a loaded and vague question)? I have a grounding probe, my ALK and Ca levels fluctuate a bit but I keep them check. I do a 5-10% water change every week. All nitrogenous levels are 0. They are pretty high in my tank and my bulbs are pretty old (going on about 10 months, new ones come in this week). FWIW, I have a 55 with 440 W VHOs. The GSPs are right near a PH although they are not getting much direct flow. They have been in this area for quite some time and are located fairly close from my sump/fuge return (although again, not much direct flow). Interestingly, I have BSP that are placed right in between the two GSP colonies. Often times, when the BSP are extended, the GSP polyps are retracted. Could it be a chemical warfare thing? The funny thing is, I got the initial colony with both GSP and BSP on them and so I thought the two would be able to coexist well.

Any ideas or do I need to actually test and give some actual levels?

Please disregard my poor grammar in the title
Thanks
Scott T.

01-12-2004, 02:59 PM	#1 (permalink)
ScottT1980 Reef Lobster Join Date: Nov 2003 Location: Raleigh, NC Posts: 1,485 View Gallery Karma Komment	What are GSP sensitive too??? Well, I have been trying to pinpoint this "ghost" in my tank for quite some time. My GSPs stay retracted quite a bit in my tank and have been doing so for the past couple of weeks. They have been extending their polyps maybe twice a week but most of the time they remain retracted. All my levels seem to be normal and all other tank inhabitants and corals seem to be doing quite well. In fact, the GSPs seem to still be growing. So, what the heck could be my problem (I know, kind of a loaded and vague question)? I have a grounding probe, my ALK and Ca levels fluctuate a bit but I keep them check. I do a 5-10% water change every week. All nitrogenous levels are 0. They are pretty high in my tank and my bulbs are pretty old (going on about 10 months, new ones come in this week). FWIW, I have a 55 with 440 W VHOs. The GSPs are right near a PH although they are not getting much direct flow. They have been in this area for quite some time and are located fairly close from my sump/fuge return (although again, not much direct flow). Interestingly, I have BSP that are placed right in between the two GSP colonies. Often times, when the BSP are extended, the GSP polyps are retracted. Could it be a chemical warfare thing? The funny thing is, I got the initial colony with both GSP and BSP on them and so I thought the two would be able to coexist well. Any ideas or do I need to actually test and give some actual levels? Please disregard my poor grammar in the title Thanks Scott T. Last edited by ScottT1980 : 01-12-2004 at 03:18 PM.