2 Problems

[amstar15]

my yellow polyps have disappeared from my tank over time. my brown button polyps have not been open for over a year now. i have moved the brown polyps (there is at least 25-35 different stalks/heads) all over the tank for different light variations, water movement ect. any ideas to why these will not open up? why do i have such a hard time keeping polyps but my sps, and lps corals, mushrooms and to soft corals are doing great. i have 2 175 watt 10k bulbs, actinics on my 75 gallon tank, chiller.

i have also never seen my bi-color nip at any corals except my elegance coral (which he proceeded to kill and eat)

any help would be appreciated

 

[Aquascaper]

What are your water parameters?

 

[Chac]

What are your water parameters?

& Stock List

 

[amstar15]

75 gallon reef aquarium
2 (175 watt) halide bulbs 10,000 k
2 (60 watt) blue actinic bulbs (working on lunar lights)
24" hang on cpr refigium (9 watt 10k bulb/9 watt actinic)
36" mudd filter (three various macro algaes) 18 watt 10k (x2)light and a 9 watt blue actinic/ 9 watt 10k bulb
Acrtica Titanium chiller 1/10 hp
5 various power-heads on a wavemaker
135 -150 pounds of live rock

Fish
5 fire fish gobies
1 mandarin
1 bi-color angel
1 red lip blenny
1 diamond watchman goby
1 court jester goby
1 yellow corris wrasse

Inverts
3 peppermint shrimp
2 red blood shrimp (fire shrimp)
5 camel shrimp
5 acorpora crabs
100 various snails (less now (getting eaten by crabs)
125 blue leg and red leg hermits
emerald mithrax crab
two gipsa clams (1 small/ 1 large)

Marine plants
shaving brush plant (added 6-12-05)
Java Fern (6-12-05)
Kelp on a rock (6-13-05)
Red Grape (6-13-05)
halimeda plant (6-20-05)

corals
Spaghetti finger Leather (fragged three different places now)
Blue Ridge coral
Candy Cane Coral (12 heads)
Hammer coral
Glove polyp
Kenya Tree Coral
Cup Coral (13 inches across ITS HUGE)
Pumping xenia (bushy)
pumping xenia silver branch (freebie 1" 6-10-05)
Button Polyp
pink birdsnest
Star-burst polyp (three different places)
Ricordea Mushroom (blue/green)
Toadstool Mushroom Leather Coral
Cabbage Leather (every-where)
Colony Polyps (three different places)
Colony polyp (yellow)
Carnation coral
Chili catus coral
red/green/spotted, stripped mushrooms (everywhere, where ever they decide to end up)
orange sunfire polyps
Cauliflower colt coral (5-10-5)
med green galaxea (added 5-31-05)
blastomussa coral/pineapple cup coral (5-31-05)
green flower pot coral (5-31-05)
tree coral (freebie less than 1" 6-10-05)
hairy mushroom (added 6-13-05)
orange fire burst zoo's (6-14-05)
Pink zoo's (6-14-05)
frogspawn
orange tube coral
butternut stylophora coral
green zoo's
purple zoo's

1.026 salt level
0 ammonia/nitrates
8.2 ph
temp is 79 always
calcium 365 this morning

 

[Aquascaper]

The only thing I can think of is that the brown zoo's are being out-done when it comes to something, with everything else in the tank it seems that there's something lacking

On a side note, have you checked for nudibranches? a lot are zoo munchers and stay very small, they attack the zoo's from underneath and one symptom of that is that the zoo's shut (reflex action and why the nudis do such a great job of eating them). Just a thought as i've had to look into them as a new zoo rock I bought came with one on it

 

[amstar15]

at times i have noticed that there are little sections of zoo's at times missing. i just put it as maybe some shrooms were up against them and the zoo's lost the "battle" what exactly do nudibranches look like and how big are they? i did find a small snail like creater once it was in a coil shape and had segments to it. i threw it in my sump, it was in the "clump" of pink zoo's i had and it was starting to turn bare there

 

[SkiFletch]

most adult nudibranches look like oversized and colorful slugs and average around 2" in length...

Did it look anything like this:

or perhaps more like this