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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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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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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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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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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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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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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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Discussion Starter · #24 ·
I wouldn’t. You may be able to adjust the canister return for more surface agitation.
Got it. Ty!

For right now I think a couple power heads pointing towards the surface will go a long way to help your system.
They range from STUPID EXPENSIVE to DIRT CHEAP.........
......I personally am from the DIRT CHEAP camp. ;)
I've used these for years, and am ordering this again now for myself.

And yes, I use a LifeReef skimmer, but although an incredible skimmer, they are a tad pricey......took me a long time to convince myself, and have never looked back.
Hack
Yeah I'm trying to save money now that I have to get so many things. A cheap power head is fine to me. Now for a hang on top skimmer what do you recommend that is not so expensive?

I’ve been following but been busy today. All good advice. Get more surface agitation. Keep temperature lower . As temperatures get higher , oxygen levels drop. But on a normal tank we normally don’t see that happening. I’ve had tank get up to mid 80’s and it didn’t cause any fish losses. But if you are having issues with low oxygen then it could be an issue.
As far as skimmers you can find some decent hang in back from reef octopus and aquaMaxx.
Thank you for the advise! I'm looking for skimmer options that are not so crazy expensive but are effective.


Thank you everybody.
 

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Discussion Starter · #29 ·
Okay..this is confusing.
You've had the same setup for a year, and everything was fine?

It appears ALL your fish died within a 8 hr (window) while you were at work?

It's NOT oxygen as you had the same tank running for a year you said in the same parameters.

I initially thought temperature maybe a heater went wacko but that would have killed your corals probably.

The only two things that were introduced into your aquarium where the new (nutrient chemical)
And you said A week before you added some corals etc..

All I can think of is you introduced a disease into your tank but that still wouldn't explain all your fish dying at once within an 8-hour window?

The chemical you put in is just food.

Frankly all I can think of and I'm no expert.. I've had my ups and alot of downs and have had my tank for 20 + years.

All I can think of is an accidental overdose of something? or HEAT? a faulty heater?

Is there any possible way something could have been introduced into the water children guests housekeeper?

I had an unfortunate experience 4 years ago I moved my aquarium and during the process of moving and setting up took a couple weeks which was likely the problem everything died all corals all fish only one made two fish made it a big maroon clown and a flame hawk.
It's the weirdest thing I've ever seen and nobody's ever been able to explain it to me but my corals basically just turned to mush and rotted.

These were corals that were 15 16 17 years old in some cases?

I thought I did everything within reason but sometimes when you're trying to recreate mother nature in a closed small environment nobody has the answers it's just unfortunate 😩
I hope you can find out what happened cuz I know it's a real drag to lose things you feel responsible for.
Right now I still don't know what happened and I'll probably never find out haha. It sucks but it is what it is.
 

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Discussion Starter · #30 ·
I got an update guys. I had a Amazon gift card and I use Amazon pretty often so I got an Amazon credit card for purchases there and they gave me $200 as a welcoming offer, so I ended up getting the Octo 100 HOB. I installed it yesterday and this morning I woke up and it was pretty full of nasty stuff. It scared me a little cause I thought it was gonna overflow. How do I adjust it? Is it by setting the collection cup higher? I turned it off this morning cause I wAnna make sure I do this right and I don't get home with water everywhere. Also My brother gave me a fire goby and a royal gramma as a gift and this was almost two weeks ago. And now I can't find the royal gramma. I haven't seen it in a week. Even when I feed them. It's weird.. My luck is testing me!!!! Mercy.
 
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