incredible hulk no pe

sweedish15

New member
Im new to sps, I have recently purchased a frag of incredile hulk. I love the color, but the polyps have not extended after several weeks of being in the tank. I've moved the frag around a few times for different lighting conditions and it has not helped. Its not losing color, but its not extending either.

Standard 90 gallon tank lit by 6 retro fit t5's with icecap reflectors, all geissman and kz bulbs. photo period is 8 hours, 5.5 hours at fully lit fixture. The bulbs sit about 10 inches off the water, the frag is in the upper third of the tank on the very top of a rock. 2 bulbs are replaced every 3-4 months so they vary from a month old to 9 months old.

Some of the other sps in the tank are good some are bleaching and I dont know why.

no nitrate
no phosphate
I use reef crystals salt for 10% changes each week, and daily brs 2 part
cal varies between 420-450
alk is steady around 9 dkh
run rawaphos in a phosban reactor
chaeto in sump
carbon in sump
2 koralia evo 1050s in display with 800gph flow from return ( thats with the calculated head)


I would like to keep more sps but keep getting discourages because some seem to be ok while others bleach as soon as I add them and dont recover. I have another frag of sps and dont know what it is, but it bleached the first two weeks in the tank while sitting on the bottom rocks.

Purple pocilopora and purple bonsai look great. and are at similar heights to the incredible hulk.
 
I would look to add a bit more flow to the tank. Some species of SPS can take more light than others. Try to leave the hulk in one spot, this will allow it to adjust to the flow and lighting, took mine almost a month to have PE. The ballast you are using overdrive the bulbs and put out a lot more PAR so bleaching is not out of the question. I run the same setup with ATI bulbs and I have gotten several frags that have bleached on my sand bed. Is it bleached? or did it RTN? The bleached corals in my tank take about 1.5 months to adjust and fully recover their original color. Just my 2 cents
 
No they are two philips centium ballasts, power each bulb at 54 watts.

Only the actual reflectors are icecap slr.

Ill glue him down and stop moving him around and see if it helps.

The sps are def bleached, not RTN. They still have some minor polyp ext. but are nearly all white.
 
ATL Incredible hulk like HIGH light lots of flow and shimmer. Seen the best color 10" under 250w hqi phenix 14K and mine very similar 20" under lights with two 250w XM 20K AND 2 110w super actnic VHO's

still think you have plenty of light?

i know i will catch hell for saying this but i have never seen true color SPS under T5 lights tried them myself hated the results and have seen many tanks with them always pastel colors.

good luck
 
The point is not to debate one light vs the other. Even though its my tank I too feel like sps show better color under MH lights. I glued it down six inches from a powerhead and about 8 inches under the water line. To help i moved down my lights so they're only 8 inches from the water line.

All things combined it seemed to help. Polyps are slowly emerging.
 
Back on original topic,the polyps continue to come out more each day, and the coral seems very happy with his newly glued down spot. Another frag I had unmounted towards the bottom is showing signs of life after being glued down.

I went through that guys page, very nice tank, but im very satisfied with my t5's and feel lighting is not the issue
 
T5 is not the issue. I have one and it wasnt happy till i put it up very high, and with lots of flow. Color isnt the same but growth is out of control. I have MH with mild LED supp
 
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