All my fish are dying!!

[QualityReefer82]

I moved in April and the water got a little cold and i lost my goby. About a month later, my yellow tang looked skinny and a few days later died. I had him for almost a year. I had all the same livestock for over a year with no issues. About 2 weeks after the tang died my 2 green spotted puffers started to look like the skin was peeling around their mouth. So i had a 75 gallon i just bought and decided to move everything into that as opposed to the 30 gallon everything was currently in. A couple days later the puffers were dead. A few weeks went by and everything seemed normal. my corals looked healthy and nothing looked stressed or sick, so i decided to purchase a tri color wrasse and 3 small fire gobys. After about 2 weeks, the wrasse looked like he had ick and about 3 days later it died along with my coral beauty as well. I started changing water daily to try and save the few fish i had left. Last week, my 2 clarkii clown fish started to have that same skin peeling look and they died also 2 of the fire gobys have gone missing. All i am left with is 1 fire goby and a blue damsel. All corals look great. All the testa i ran look good. What is wrong??

 

[EricSIny]

All those fish in a 30g tank is what happened.

How about posting water params? Do you check those??

 

[gone fishin]

I am a little confused was all those fish originally in a 30 gallon tank .

 

[Below Radar]

8 fish in the 30? goby, Yellow t, coral b, 2 puffers, 2 clowns, 1 damsel. I would say stop buying fish, keep doing water changes, post your parameters. What kind of water are you using?

 

[Pumpkin Bear]

You haven't provided enough information to tell you exactly everything that is wrong, but based on what you've told us, way too many fish for the size of your tank, and you didn't quarantine properly because now you have ich, and possibly other diseases. It's also possible you had an ammonia spike when changing tanks. I don't know what kind of equipment you use or what kind of water tests you did.

 

[QualityReefer82]

i tested my ammonia and it was fine, my ph was good as well. my nitrates were a little high. i know it sounds like i had a lot in the 30 gallon bu they all lived together fine for more than a year and a half. i use RO water. What else should i check besides ph ammonia and nitrates.

 

[medic155]

Skin peeling look sounds like brook.

 

[dattong]

your fish might have been infected with Velvet (fish disease). Do a little research on this and confirm the info with what you had witnessed before your fish died.

 

[MrTuskfish]

I agree with all of the tank size comments; you are WAY overstocked. If you have brooklynella, velvet, or ich; all fish must be treated in a HT/QT and the DT remain fishless. Nine weeks for ich. Its important to identify what parasites you're dealing with, cures are different.

It sounds like you don't use a quarantine tank & regimen with all new fish. You are probably introducing parasites and/or disease form the LFS to your tank. This is inevitable unless you start to use a QT.