GSP observation

sbertomen

Premium Member
Every time I see a photo of green stars or see another members tank, I notice again that my tentacles are so much longer than any I have seen. Is this bad? Is something wrong with them or my husbandry? I believe all my other corals look healthy, my new green sarcophyton polyped out after 24 hours in his new home. I still have not mastered the art of tank photography so I can't show you. I do have a small acro in my softy tank which is growing, colored and shows what I believe is good polyp extension.

My 20 g tank parameters are
Ammonia - 0
nitrites - 0
nitrates detectable
pH - 8.2
Kh - 9 - 10 ( I have two different kits and they both consistently measure differently)
calcium - 420
phosphate - 0 (but I don't believe this test since I have a 1 x 2 in patch of hair algae which does not disappear - I am now experimenting with PhosBan)
temp - 79

I do 10% water changes twice a week, run carbon mostly and drip kalk. One thing about my kalk - I drip at about 1 drop per second and it does not keep up with my evaporation. I don't have an auto top off - I do it manually, so I have to add about 1.5 cups of distilled water every other day. But I do always wonder how you can keep the drip slow and top off with all kalk with those really big tanks.
I do two water changes a week because every time I hear how much skimmate you guys get, I think my skimmer may need an upgrade. I only get about 1/2 C a week and it is not very dark, nor does it smell that bad. I think this may be a function of volume - but I am not sure.

I have four AquaClear phs for flow, 2 20s, 1 30 and 1 50.

I use natural seawater. I changed from IO awhile ago - but my GSP were long then too.

Am I missing something?

thanks,
sara
 
i have 2 patches of gsp both from the same frag. one has very long polyps and is in a high water flow area, the other is in a slow water flow and has short polyps. with a 20 gallon tank changing 10 % twice a week you may not need to drip kalk. as for top off i have a float that keeps the water level constant.

Marty
 
CURRENT and FLOW is indeed the answer here. The constant streching of the flesh aids in growth. I've had similar results with a few species of corals.
 
thank you guys - this is the second time I thought I had a terribly complicated chemistry problem and the answer was flow. I am going to read up on this again!

sara
 
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