dead fish

After a long winter of not taking good care of my reef tank, I started to do better this summer and now all of a sudden things died. Everything was fine after I added 3 SPS corals (montipora spondoges, chalice, and a green encrusting coral) which I added to lower my Calcium and Alkalinity levels...

Hello everyone, any one has heard of fish dying by dosing Neo Nitro and Neo Phos?! My 3 year old tank had a case of Dinos due to 0 nitrates and 0 Phosphates. I did a blackout method and dosed 5 ml of Neo Nitro, and Neo Phos to a 125 gallon system. I noticed the water got really cloudy upon the...

Woke up this morning to my female clownfish of our pair dead, was laying on the bottom left right next to overflow a bit pale. No signs of foul play, gills were open. This tank has an overflow and the pair used to hang out very close to the outlet and near the overflow grill. Thinking of the...

Hey guys, I am a newbie that is still learning. I came home to see my fire fish dead. I had clowns die of brook about 3-4 weeks ago but I treated the tank with ruby rally pro. Salinity is at 1.025. Corals are doing Pretty good it seems. The anemone was looking weird and shrunk ever since the...

Hit the LFS yesterday and brought home a YWG and a pistol shrimp as well as a fire fish. Woke up this morning and the fire fish had died. Chemistry all looks good and all other inhabitants are healthy. My fire fish was very interested in the burrow the pistol shrimp was making and I'm...

Hi, this is would be my first post but I have been on site for a good time now. So last evening I did a good clean up of my tank and did a 30% wc. I went to sleep at 1am (6-7h after wc) and everything seemed fine, I woke up in the middle of the night at around 5 and all my fish were dead except...

150 gallon new tank was set up and cycled with bottled ammonia for a month. After a month, added a Foxface and scopas tang. Several weeks later, added a powder blue tang, pair of clownfish, and a melanuras wrasse. During that time I also added a clean up crew and several small coral frags. The...

Hello All, I’ve had a Convict Tang for the past 10 days in quarantine with a Sunburst Anthias and two Bandai Cardinals. The Convict was a model citizen - very active, eating nori, and eating frozen mysis. I fed the quarantine tank this morning and no one acted unusual…until about a half an hour...

My blue sided fairy wrasse jumped out of the tank a few hours ago I guess and I JUST found him.. I have a hood on my tank, it's just raised about half an inch and somehow he managed to position himself perfectly through it. He was my daughters pink fish, she named plants. Mixed emotions but...

I'm fairly new to taking care of marine life and I recently got my tank stable, no more ammonia. But my fish keep dying. This is a new one that I encountered, I hope someone here has dealt with this or knows what to do since I don't know what to google or what it's called. Thank you!

I have a fairly new (fully cycled) 36g tank with two clowns, a Firefish and a clean up crew. I'm working up to more fish, but today I came home to the Firefish dead, floating with a wound in its stomach. For context, in the two weeks I've had it it has been very active, friendly enough with...

A few days ago I recently did a routine water change on my aquarium and when I plugged all of my equipment back in, everything seemed off. First, my Rainsford and Mandarin Dragonette were showing weird swimming patterns. The Rainsford normally liked to hang out in front of his hole but now he...

I just added 2 banggai cardinal, a YWG, a green mandarin goby, a blue hippo tang, and a flame angelfish from DR Reef's quarantine fish to my 200 gallon reefer xl Unfortunately the flame angel, one cardinal, and the YWG all died within 3 days. Water parameters are normal and the other fish are...

My tank is over 2 years old. it is It is a custom 230 gallon glasscages aquarium. My tank used to be stocked with a Fox Face, Sailfin Tang, Blonde Naso Tang. 2 clowns, 2 Vlamingi Tangs, Algae Blenny, Coral Beauty, Purple Tang, and Green Mandarin, and Pistol Shrimp. In early December 2021, I...

My fire goby started to get a red spot on the belly and after a few days it died. I’ve been searching and found something called uroema marinum, I hope it’s not that but I have no idea does anyone know? Thanks

My pretty baby seemed to die overnight! I am new to the hobby. I don’t have any pictures of it suffering, but last night it was swimming on the ground and I noticed the crest of its fins seemed ripped in one area. I wasn’t sure what to do so I figured I’d observe it for another day before taking...

This tang presents a little different than the others that died. They had a white fuzz on them. Velvet? I don't have great pics of those fish with it, they were hiding. First the Powder brown and another similar tang went down fast after showing some dark spots (larger than black ich, more like...

Ahhh… So I assume you have GHA (green hair algae) and you have been scouring the internet for success stories and ways people have beaten it. I was in your place 8 months ago but most methods I tried ended up failing so I’ll share how I defeated it. So here’s the beginning… I purchased a frag of...

I thought my tank was finally ready to add fish, but I woke up this morning to find 4 dead fish. I don't know what I did wrong. I added 2 saddleback clownfish, 2 damselfish, 2 banggai cardinalfish, 2 blue leg hermit crabs, and a turbo snail to my tank last night after double checking the water...

So, last night I went to bed and I turned off the light and I had 2 fish in my QT. This morning I woke up and there was only 1 fish?! After freaking out thinking somehow it got out and died… I stopped to look at the wave maker… and inside found my 3 inch foxface completely and utterly...

Hey guys so I recently purchased a wrasse as well as a new CUC I brought Scarlett hermit crabs, a cleaner shrimp, blue leg hermit crabs, and a couple snails. Now I have a emeral crab from my last clean up crew and the emerald, cleaner shrimp and blood fire shrimp all hang out on and in the...

So.... I had a clownfish die about a month ago now. That was my first time keeping a fish, ever. I am fairly new to the hobby, and I am wondering my next steps are regarding a couple things in my 10g tank. 1. I hadn't had the chance to test my water up until recently, and my nitrite and...

Hey fellow Reefers.. although im not a reefer yet, just an aspiring one, I have a freshwater aquarium which I am using to learn ALL (!!) I can about to graduate to a reef so I don't mess up. But now seems that im messing up! Now in the last weeks one by one my fish are dying off.. why?? Fluval...

75gal display with 40 breeder DIY sump. Tank has been running since January, first fish (clowns) added in February Stocking: 2 very small clowns 1 3" bicolor blenny 1 half dollar size Blue Tang 1 cleaner shrimp 60 assorted snails (tiny) 5 hermit crabs 1 DEAD 3" Golden Head Goby 1 DEAD 3" Fire...

I have had an established tank for about 8 months now and my two clowns for about 6. I have a 20 gallon hex tank. Five hermits were added about two months ago and I have various corals. Last weekend I added some copeopods from petco( I don’t normally use Petco organisms but my lfs is an hour...