If you think they are getting too much light you might want to try some
Iodine. I believe this helps with the "over" driven photosynthesis.
> -----Original Message-----
> From: Shane Clays [SMTP:[EMAIL PROTECTED]]
> Sent: Friday, March 23, 2001 10:28 AM
> To: '[EMAIL PROTECTED]'
> Subject: RE: Help with SPS
>
> "Hi, Shane. You mentioned you changed lighting. Were your corals doing
> well
> before the change?"
>
> No, not necessarily. Most have actually colored up very nicely since the
> change, however, growth seems to have always been an issue. I went home
> and
> really looked again, and saw that the green acro has really lost a lot of
> color and has not grown at all. Very very pale. The hydno has not really
> lost much more color over the last couple of weeks, but has not really
> grown
> since introduced to the tank (4-5 months ago). As mentioned, it really
> extends it polyps, pretty much 24-7. I gave it lots of space, and it gets
> a
> nice surge of water via a Sea Swirl every 30 seconds or so. Both the acro
> and hydno are right up on top of the reef, in between the 2 MHs where the
> light concentration is the highest. The tank is the 70 gallon with 2-275
> watt MHs and 4 - 36" vhos. Total wattage is over 10 watts per gallon. It
> is
> 22 inches tall.
>
> Parameters are:
>
> Alk. 4.4-4.6 meq
> Cal. 440-450 ppm
> Ph - 8.1-8.3 (7.9 at night)
> A/N/N All zeros
> PO4 ???? I do not have a test for this, and have never ran any type of
> removal resin.
>
> As for food, I do feed all my corals. Generally is what I feed is phyto
> and
> I also squirt them with the very fine particulate left over from frozen
> foods. This is done almost daily.
>
> When I put all of these frags into the tank, they were acclimated with
> layers off eggcrate. They went through 3 layers and 4 weeks of
> acclimation.
> Unfortunately, I don't have the room to put new corals on the bottom and
> move them up, so I place em where I want em and use multiple layers of
> eggcrate and then remove a layer every week or so.
>
> Something that I have noticed is that when I move corals from under the
> 55k
> to under the 10k, they loose color. When I move them back, they color back
> up. This holds true for my purple colored corals. The greens just seem to
> have problems all around, whether under the 10ks or 55ks. Not sure why it
> seems to be just greens. Maybe it is all of them, but just most noticeable
> in the greens.
>
> You mention that you have the hydno mid way up under a MH. What wattage is
> that? Do you think the hydno is getting too much light?
>
> Right now, I am thinking it may have something to do with PO4. I don't
> have
> a ton of algae growth in the tank. I do have the bubble algae, and have to
> scrape the glass every few days, but not anything to bad other than that.
> But, I have a refugium full of caluerpa which is probably getting it
> before
> the micro algae is. There may be enough to effect the corals, but not
> enough
> for both the micro algae and the caluerpa.
>
> Any more thoughts??
>
> Thanks again,
> Shane C.
> -----Original Message-----
> From: [EMAIL PROTECTED] [SMTP:[EMAIL PROTECTED]]
> Sent: Thursday, March 22, 2001 5:49 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Help with SPS
>
> Hi, Shane. You mentioned you changed lighting. Were your corals
> doing well
> before the change? I have some other thoughts on this but need more
> info.. If
> you already posted your dKH, pH(day), Ca+, and PO4 I'm sorry please
> tell us
> again. Hydnophora need space...lots of it. They can easily burn/melt
> anything
> they come in contact with but can also be easily stressed. I have a
> parent
> colony very green, nice light brown polyps. Have taken several frags
> from it.
> I keep the parent colony med-high under 10KK MH (Ushio). Frags also
> under
> 10KK Ushio in prop tanks. They are very hardy, medium-fast growers.
> They like
> dKH over 12, Calcium 450ish, and pH anywhere from
> 7.9-8.35....Acropora
> generally do very well in systems with shallow flats lighting
> (6500K) like
> Tridacna OR deeper water replication with 10K+ MH. I find (IME) they
> color-up
> better and grow faster under 10KK crisp white like Ushios. I use no
> supplemental actinic on SPS prop tanks and they do great. For
> Monti/Stylo I
> use VHO lighting on prop. tanks....1/2 03 blue, 1/2 50/50. They
> color-up,
> extend, and grow very quickly (weeds) under these conditions. All
> corals will
> change somewhat under different conditions. You might just keep an
> eye on
> water parameters and give them some time. If you are not feeding
> them....start! I do not use phyto. I grind up
> shrimp/squid/scallops/clams/fish to a milk shake consistency and
> direct feed
> with an eye dropper at night. They DIG this food. You can freeze it
> and break
> some off for feedings....Fed SPS will get fat. Not fed SPS grow tall
> and
> skinny. Also, you can try some "Coral Heaven" available at
> Tropicorium and
> Indo-Pacific Sea Farms....I got a free sample and like it a bunch.
> Have to be
> carefull with it, however. One last thing....I put corals on the
> bottom when
> introducing to my systems....I leave them like that for a week or so
> and then
> move them higher if needed and increase photoperiod gradually (from
> 4-5 hours
> MH to 8-14). I have found it is easier to gradually increase light
> requirements than to fix a coral burnt or shocked. People tell you
> it is not
> possible to give too much light....It can be done, trust me. Use
> some plexi
> UV screen when introducing new animals especially. Later!
> ________________________________________
>
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