Sick lionfish

Jason Coy

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I have an Antenna lionfish that is about 3-3.5 inches long that is currently in a 20g long with some macroalgae and a couple ricordia mushrooms. This is a temp home and I have to dose nitrate and phosphate to keep Nitrate about 8-10ppm and phosphate around .05ppm. I performed an ammonia test with an API test kit and get 0 for ammonia. I haven't set up my dosing pump yet but alk fluctuates between 6 and 8 dkh. I haven't been great about manually dosing and is why it has larger swings over a couple days. Ca is around 430 and Mg around 1480. This is all with Hannah checkers except ammonia.

The lionfish gets fed 2 guppies or 2 ghost shrimp every other day and let's me know when he is hungry. He hasn't eaten in about 4 days and acts lethargic and looks a little sickly. He sits out in the open more, which isn't normal for him, and if I nudge him a little bit he won't move where in the past if I have gotten near him with the baster then he would swim away. I haven't tried feeding him but whenever I put the net in the tank he would always come swimming right up to the net and he doesn't do that right now.

I am fighting dinos and have been for a little while now. I thought it was because phosphate was at 0 but I have since fixed that and phosphate always stays above 0 now. I'm not sure if that has anything to do with the condition of the lionfish? I heard that dinos can be toxic but not sure if that is true. The dinos get bad the longer the lights are on and mostly clears up when lights turn off.

I'm not sure what is causing the lionfish distress. I do know they can stop eating from time to time and that they can get parasites. I do have some general cure if anyone thinks that would help? Not sure, if it's a water quality issue, although all perimeters seem to be in check or if it's maybe internal parasites, I'm open to suggestions. I did add a air bubbler to a power filter in case it was dissolved oxygen. That was a problem. It's only been 24 hours but it hasn't seemed to help. I also did about a 25% water change and that doesn't seem to have helped either. Salinity is slightly high at 37 ppt. That doesn't seem that high to me but I don't. I think that's all the info that you need, but if there's something else let me know. TIA Jason
 

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I have an Antenna lionfish that is about 3-3.5 inches long that is currently in a 20g long with some macroalgae and a couple ricordia mushrooms. This is a temp home and I have to dose nitrate and phosphate to keep Nitrate about 8-10ppm and phosphate around .05ppm. I performed an ammonia test with an API test kit and get 0 for ammonia. I haven't set up my dosing pump yet but alk fluctuates between 6 and 8 dkh. I haven't been great about manually dosing and is why it has larger swings over a couple days. Ca is around 430 and Mg around 1480. This is all with Hannah checkers except ammonia.

The lionfish gets fed 2 guppies or 2 ghost shrimp every other day and let's me know when he is hungry. He hasn't eaten in about 4 days and acts lethargic and looks a little sickly. He sits out in the open more, which isn't normal for him, and if I nudge him a little bit he won't move where in the past if I have gotten near him with the baster then he would swim away. I haven't tried feeding him but whenever I put the net in the tank he would always come swimming right up to the net and he doesn't do that right now.

I am fighting dinos and have been for a little while now. I thought it was because phosphate was at 0 but I have since fixed that and phosphate always stays above 0 now. I'm not sure if that has anything to do with the condition of the lionfish? I heard that dinos can be toxic but not sure if that is true. The dinos get bad the longer the lights are on and mostly clears up when lights turn off.

I'm not sure what is causing the lionfish distress. I do know they can stop eating from time to time and that they can get parasites. I do have some general cure if anyone thinks that would help? Not sure, if it's a water quality issue, although all perimeters seem to be in check or if it's maybe internal parasites, I'm open to suggestions. I did add a air bubbler to a power filter in case it was dissolved oxygen. That was a problem. It's only been 24 hours but it hasn't seemed to help. I also did about a 25% water change and that doesn't seem to have helped either. Salinity is slightly high at 37 ppt. That doesn't seem that high to me but I don't. I think that's all the info that you need, but if there's something else let me know. TIA Jason

From your description, I don't think there is a water quality issue (aside from dino toxicity - a remote possibility)

How long have you had this lionfish?
Any other fish in the tank?

Can you post a video of the lionfish so that I can get some sense of its breathing rate and overall demeanor?
 

W31Olds

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The parameters you are managing really don't have much to do with your Lionfish being off. The important ones are Temp (in case you have a bad heater) and Ph, however it's unlikely they are causing your problem. A video, pics, and any Tankmates or new Additions is needed to make a proper assessment.
 
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Jason Coy

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Thanks for the replies. I'm not home right now so I had to get a video later. Although I can see if my wife can get a video. There are zero tankmates except for some snails and blue-legged hermits. Only recent addition but was maybe a week before this started happening is a red serpent starfish.

I've had the lionfish for about 2 months and it started eating as soon as I put it in the tank. I noticed the heater was off but temperature was still 74. Temp drop was after the change in deamnor. Prior temp was 81. Was keeping it about 78. I raised it up to 81 based off of something I read about dinos that suggested that maybe a higher temperature could help get rid of it. However, that was over a week ago so I don't think the higher temperature is related. It's set back to 78 now. I thought I had lost him as he was under a rock. I moved the rock around and he did scoot but he refuses to swim or can't swim and barely scoots.

I have been adding some extra account to bring it back up slowly and pH. The last I checked was about 8.1 which is up from the 7.7 that it had been for ages. The tank itself has been up and running fishless for over a year. Alkalinity got as low as 5.9 because I have some calcified algae in there and like I said I was slow and keeping up with the demand. All the algae was added after the dino outbreak and after the lionfish was in but has been a month or so. I did change the light but I don't think that has anything to do with it. Also, I have experimented with some power filters and change some in and out but I don't think that has had an effect either. Or can't see how it would affect it
 
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Jason Coy

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The video is not the greatest, but you can see the brown dinos. The white specks on the top is just the sand. I had basted some Dinos off of some algae and the sand ended up getting on him. He must still have it from earlier
 

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Jason Coy

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Here is another video taken this morning.
 

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Jay Hemdal

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Here is another video taken this morning.

Given the amount of dinos actually hanging on the fish, I'd say this is toxicity from that, they also may be clogging the gills. I don't know a lot about dino toxicity and fish, I haven't run into that myself. The type of dino that is most toxic to fish is Ostreopsis.

As far as a treatment, the only thing I can think of is to move the fish to a new tank and keep it blacked out to cause the dinos to die off.
 
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Jason Coy

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Ok thanks Jay. The only thing I could think of as well would be the dinos but wasn't sure. I will move him.

If it is clogging the gills is there anything to do for that?

Outside of a bucket of fresh salted water all I have is a 40g breeder with some fresh live sand that is still clouding the water. The 40g currently is a little over half full with 22.5g of water and 40lbs live sand with no rocks and currently no heater.

Would he be ok in the bucket with heater and air stone until I can finish the 40g breeder or just put him in the 40g for now where there is at least some filtration and I can go get some live rock. I'm hesitant to move any live rock out of the current tank even though I'm leaving the lights off.

What do you think is best in this situation?
 

Jay Hemdal

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Ok thanks Jay. The only thing I could think of as well would be the dinos but wasn't sure. I will move him.

If it is clogging the gills is there anything to do for that?

Outside of a bucket of fresh salted water all I have is a 40g breeder with some fresh live sand that is still clouding the water. The 40g currently is a little over half full with 22.5g of water and 40lbs live sand with no rocks and currently no heater.

Would he be ok in the bucket with heater and air stone until I can finish the 40g breeder or just put him in the 40g for now where there is at least some filtration and I can go get some live rock. I'm hesitant to move any live rock out of the current tank even though I'm leaving the lights off.

What do you think is best in this situation?

I don't know about unclogging the gills, you really shouldn't handle it due to their toxic spines.

Yes - you can hold the lion in a bucket of seawater with a heater and air stone for up to 24 hours.
 
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Jason Coy

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I thought the lionfish was doing better in the bucket but this morning it was dead. I should of moved it sooner.
 

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