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Discussion Starter · #1 ·
Hello everybody!

I come with sad news, all the fish in my tank died suddenly and I would like to hear your opinions. We have a 36 gallon tank. We had 2 clownfish, 1 fire goby, 1 royal gramma and 1 shrimp. We’ve had them for a long time, some even 1 year And they were all just fine. We also have 2 bubble tip anemones, 1 GSP, 1 Kenya tree and 1 duncan. All we had for a while. The week before this accident happened, we added 1 pulsing Xenia, 1 palythoa and 1 organ pipe. We added them on a Sunday. They were just fine, every coral and every fish. Other new thing we did was getting a product called Reef Energy Plus Coral Nutrition which we added a spoon to the tank to feed the coral. Everything was just fine. Thursday the person we pay to come check the tank and make sure everything is fine came and he did some water changes. Water levels were fine. Yes, I pay someone to take care of my tank, I have no experience and I find this a little too complicated sometimes, so I’d rather get some help. Anyway, we came back home Thursday night and everything seemed to be fine, fish were acting normal, we did not see anything out of the ordinary. Friday morning we go to work and they all look just fine. When we come back from work I noticed every single fish were dead. Including the shrimp. Some corals and anemones seemed to be acting out or ordinary, they weren’t completely out. We were shocked and sad, since we had some of the fish for so long, they felt like our babies. We tested the water at home with some strips and water was fine. We took some of the water next day to a store close by so they would test it and they said water levels were fine, only thing that was low was salinity at 1.022, which I think is acceptable? I’m not sure. Then Monday the person who helps us came by and tested the water we put aside and said it was fine. I really have absolutely no idea what happened. He did mention that Thursday that the water was a little too hot, so we adjusted out thermostat that same day to always be at 75 while we’re away. Only other thing I can mention that would be related is, that when we open the windows in our balcony, the light hits the tank, but the tank its 12 feet away from the balcony, and its not like it was giving that much light to increase temperature, I guess?

So what do you all think? Let me know if you have any questions. I still cant figure it out.

Thank you Everybody.
 

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Fry Daddy! Multiple tanks, reef, seahorse
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For all the fish to die that fast and all at the same time. I’m thinking it some kind of toxins got into the tank, did corals die also. Did someone use any household cleaners, like febreze or something else.
Lack of oxygen. It hard to say for sure. Did corals survive?
 

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Discussion Starter · #3 ·
For all the fish to die that fast and all at the same time. I’m thinking it some kind of toxins got into the tank, did corals die also. Did someone use any household cleaners, like febreze or something else.
Lack of oxygen. It hard to say for sure. Did corals survive?
All of the corals and anemones survived. They didn't seem completely happy for a minute but they came back like nothing happened. As for the cleaning we did not use any products that I know of.
 

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Fry Daddy! Multiple tanks, reef, seahorse
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Without knowing all the perimeters. It’s hard to say, I know lack of oxygen can kill. I would reach out to your maintenance guy and ask them to check tank . I think they would be concerned with a tank they maintain and want to know also.
I did tank maintenance for a number of years and know I would.
 

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Discussion Starter · #5 ·
Without knowing all the perimeters. It’s hard to say, I know lack of oxygen can kill. I would reach out to your maintenance guy and ask them to check tank . I think they would be concerned with a tank they maintain and want to know also.
I did tank maintenance for a number of years and know I would.
Yeah, sorry I wish I could give you more information. I will ask them to check that. Thank you!
 

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SO SORRY to hear of the loss, and understand how attached we can get with our guests. :(

I hope more information is located so we can piece this together. Without Corals being affected, this could help track this down. What is your 'food supply'.....any chance something different in that direction?
Hack
 

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Discussion Starter · #9 ·
SO SORRY to hear of the loss, and understand how attached we can get with our guests. :(

I hope more information is located so we can piece this together. Without Corals being affected, this could help track this down. What is your 'food supply'.....any chance something different in that direction?
Hack
We give them flakes and some frozen eggs. Then only new thing was that product I mentioned which is a green liquid to feed corals.
 

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Discussion Starter · #13 ·
I just came to realize something. After you all mentioned the oxygen, I realized I don't see much surface agitation, and the powerhead I don't really see it creating much air bubbles. I actually don't see many air bubbles in the tank. Could this be the answer!?
 

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You don’t really want the power head to make bubbles. They pop and spray salt. You do want good surface agitation for better gas exchange.
Do you have a sump or protein skimmer?
 

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Discussion Starter · #16 ·
You don’t really want the power head to make bubbles. They pop and spray salt. You do want good surface agitation for better gas exchange.
Do you have a sump or protein skimmer?
Got it I understand. I'm still learning. I do not have any. We have a canister and it has been working well for us during all this time. They did recommend a sump but we have not been able to get one yet and we really don't have room for it in there. What should I get? How can I improve the conditions?

Ty guys I really appreciate this. I'm starting to believe this was the issue.
 

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You don’t have to have a sump I ran a 36 gallon for years without one. A protein skimmer is also not necessary but it will help keep water quality up and will help oxygenate the water.
I would increase surface agitation and consider getting a skimmer at some point. I just got a skimmer for my 65 gallon tank. It has run around 5 years without one.
 

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Discussion Starter · #18 ·
You don’t have to have a sump I ran a 36 gallon for years without one. A protein skimmer is also not necessary but it will help keep water quality up and will help oxygenate the water.
I would increase surface agitation and consider getting a skimmer at some point. I just got a skimmer for my 65 gallon tank. It has run around 5 years without one.
That what we were told. It's not necessary but it would help. The water condition is pretty good all the time without a skimmer. But if I need to add one, what would you recommend? Also if I can't do a skimmer, should I get a different kind of powerhead? I have something similar to this.
 

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A better power head would help. You can’t really direct that one at the surface to get agitation. It doesn’t look like it would produce much flow either. I use a gyre generator produces a lot of flow. Your flow should be at least 10 times the water volume most people recommend more. (Much more)
As for the skimmer reef octopus makes some good ones as does I think it is called Life Reef. Hack has one of theirs a lot depends on your budget.
 

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Discussion Starter · #20 ·
A better power head would help. You can’t really direct that one at the surface to get agitation. It doesn’t look like it would produce much flow either. I use a gyre generator produces a lot of flow. Your flow should be at least 10 times the water volume most people recommend more. (Much more)
As for the skimmer reef octopus makes some good ones as does I think it is called Life Reef. Hack has one of theirs a lot depends on your budget.
I did look into that brand but is out of my budget. Something else I wanted to mention is that I never installed the plastic tube that sucks the air from the outside and connects to the powerhead. Should I try that?
 
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