Thoughts on SPS polyp extension..

[Aquattro]

Just added the grounding probe and some K. We'll see what that does. If I get better colors, I suppose I'll have to live with it :P

The water column is actually pretty turbid, to the point you can see a solid beam of light from my PFO reflector. I can well imagine that the suspended particulate could irritate the corals.
The sand has to go anyway (I've got the use of a large filter to recycle the water), but the probe or K could also do it.

[Skimmerking]

See what i have noticed is the natural direction of the water in the ocean you get the back and forth. In tanks you get all around crazy people think that having all this retarded flow is working. When I was diving in the oceans in the Mediterranean the water isn't at all like what we have in the tanks.

[Aquattro]

So, a few hours later and I do see some increased PE. Not sure if it was the probe or potassium tho
Still not what it was, but I'll give it another day..

[BlueTang<3]

[KevinK]

Brad,

take a multi meter and stick it in the tank, mesure if there is voltage (dont put the ground probe in yet.

than do the same with the grownd probe in it, I had it that I had I think it was 4.5V hanging in my tank.

I now use the Zeo K ballance sinds a week, and most of the coral are defenetly more fluffy from the PE

thing Ihave going on now is that about 3 weeks ago, I also lost PE on 50% of my SPS, as well as these same 50% lost collor.

the other 50% are all fine, and sinds dosing the K ballance the PE is way, way better.

maybe there is something in the water locally, that is not filtered out by the RO unit, I replaced all filter cartridges last week, to make shore I have all options delth with.

I will tonight mesure my water voltage again, as now stray voltage is broth up, I think that in deed, something is wrong with my probe, and this could be my reason (I never checked the probe again after I placed it in

[StirCrazy]

polyp extention during the day is not a normal thing. I only had extension at night with all my corals, but for some reason people seam to like it. my theory is that if there extending there looking for food as the polyps are there food catching tools, but who knows, I could be out to lunch also... but from reading I did years and years ago no extension during the day was normal as they are feeding off the light, at night when there is no light or at times when the light isn't enough they will extend to both catch food and increase the surface area exposed to light.

Steve

[fishytime]

wild sps dont extend their polyps during the day due to diurnal predators...... nothing to do with available light or food.....I noticed a huge increase in PE when I started with phyto/zoo plankton feeding.....

[daniella3d]

My sps have full polyp extension 24/7. The only time they retract is when I touch them or when I do water change and they are exposed to air.

I guess my tank must not be normal.

Originally Posted by StirCrazy

polyp extention during the day is not a normal thing. I only had extension at night with all my corals, but for some reason people seam to like it. my theory is that if there extending there looking for food as the polyps are there food catching tools, but who knows, I could be out to lunch also... but from reading I did years and years ago no extension during the day was normal as they are feeding off the light, at night when there is no light or at times when the light isn't enough they will extend to both catch food and increase the surface area exposed to light.

Steve