sneeyatch
Active member
Hi all -
I recently picked up a 3" ORA derasa about a week and a half ago. It was in the LFS for 2 months and looks gorgeous. For about the first week, it was open great - no issues. For the past few days, it's been mostly closed (open maybe about 1/2", but has opened slightly more to maybe around 3/4"). Color is good, mantle won't extend that much, but it's intake and output is slam closed up looking.
When I introduced it, I inspected for pyrams and any other pests, saw none and felt comfortable adding it to the system.
My system parameters:
150 gallon deep dimension cube - soft coral dominant system with just a few SPS frags. Corals are predominantly zoanthids, photosynthetic gorgonians and leathers.
Lighting is a single 250 watt SE Ushio 14k halide on a pulse start ballast
Flow is from (2) Tunze 6045 and (2) Tunze 6025
Skimmer is a SRO1000INT
Running a dual BRS media reactor with carbon use only.
Salinity: 35 ppt (calibrated with refractometer and 53 ms solution)
pH: 8.0 - 8.1
alk: 7.5 - 8 dkH
nitrates: undetectable
po4: undetectable
temp: 79 degrees
I don't test for too much of anything else since it's a softie dominant system. I do supplement with TM Bio-Cal (1 scoop every day) to maintain the alk consumption. I have coralline growing literally everywhere and my SPS frags are growing very well. I have absolutely zero pest algae growing. My fish list is small - a single small lieutenant tang, king starry blenny, mated pair of maroon clowns and a royal gramma. My female maroon is larger than my tang... I keep several inverts (typical serpent star, cleaner shrimp pair, fire shrimp, various hermits, astrea snails, sally lightfoot and a longspine urchin).
The clam is placed on the bottom in a shallow sand bed and gets low - moderate flow (enough to make the mantle jiggle when open).
One thing I've noticed within the past few days is that one of my cleaners will go over and pick at the clam. It doesn't do this when fully open and this picking is few and far between. I've also inherited an explosive population of cerith snails (little tiny black conical shaped snails) but they've been in there for a long time before the clams were introduced. Additionally, I have a turquoise colored maxima clam that's literally inches away from the derasa and is open and very healthy looking. The maxima's been in the tank for at least a month or so longer than the derasa.
Sorry for the long post, but any help would be appreciated.
I recently picked up a 3" ORA derasa about a week and a half ago. It was in the LFS for 2 months and looks gorgeous. For about the first week, it was open great - no issues. For the past few days, it's been mostly closed (open maybe about 1/2", but has opened slightly more to maybe around 3/4"). Color is good, mantle won't extend that much, but it's intake and output is slam closed up looking.
When I introduced it, I inspected for pyrams and any other pests, saw none and felt comfortable adding it to the system.
My system parameters:
150 gallon deep dimension cube - soft coral dominant system with just a few SPS frags. Corals are predominantly zoanthids, photosynthetic gorgonians and leathers.
Lighting is a single 250 watt SE Ushio 14k halide on a pulse start ballast
Flow is from (2) Tunze 6045 and (2) Tunze 6025
Skimmer is a SRO1000INT
Running a dual BRS media reactor with carbon use only.
Salinity: 35 ppt (calibrated with refractometer and 53 ms solution)
pH: 8.0 - 8.1
alk: 7.5 - 8 dkH
nitrates: undetectable
po4: undetectable
temp: 79 degrees
I don't test for too much of anything else since it's a softie dominant system. I do supplement with TM Bio-Cal (1 scoop every day) to maintain the alk consumption. I have coralline growing literally everywhere and my SPS frags are growing very well. I have absolutely zero pest algae growing. My fish list is small - a single small lieutenant tang, king starry blenny, mated pair of maroon clowns and a royal gramma. My female maroon is larger than my tang... I keep several inverts (typical serpent star, cleaner shrimp pair, fire shrimp, various hermits, astrea snails, sally lightfoot and a longspine urchin).
The clam is placed on the bottom in a shallow sand bed and gets low - moderate flow (enough to make the mantle jiggle when open).
One thing I've noticed within the past few days is that one of my cleaners will go over and pick at the clam. It doesn't do this when fully open and this picking is few and far between. I've also inherited an explosive population of cerith snails (little tiny black conical shaped snails) but they've been in there for a long time before the clams were introduced. Additionally, I have a turquoise colored maxima clam that's literally inches away from the derasa and is open and very healthy looking. The maxima's been in the tank for at least a month or so longer than the derasa.
Sorry for the long post, but any help would be appreciated.
