HOB filter killed fish or parasite?

Slammed01 · 06/23/2018, 12:07 PM

Hi all! I’m starting to think that it was stagnant water in my HOB filter. What are the odds stagnant water/detritus was released when I pulled my dirty filter cartridge poisoned my fish and not snails?

I lost all my fish at the same time, I feel like a parasite would have effected fish 1 by 1 or noticed symptoms. goby jumped out, tang died and clowns I couldn’t find (crab food).

Had a coral beauty 3 weeks prior and was healthy then after 2 days he developed white spots (not ich, maybe a slime can’t remember honestly) around his eye and a bit on side and was swimming at top so I pulled him. Then I read angels can do that a can come and go.

Just don’t want to leave a fallow tank if I don’t have to!

Sent from my iPhone using Tapatalk

Tripod1404 · 06/23/2018, 02:53 PM

No, a disease killed your fish. There is no reason for it to take fish out 1 by 1, any disease is more likely to infect all fish, all at once.

Slammed01 · 06/23/2018, 03:10 PM

Quote:

Originally Posted by Tripod1404

No, a disease killed your fish. There is no reason for it to take fish out 1 by 1, any disease is more likely to infect all fish, all at once.

How so? They all died same day, a day after a water change which makes me believe a ammonia spike or something from my hob cartridge

Sent from my iPhone using Tapatalk

Slammed01 · 06/23/2018, 03:10 PM

None showed signs of disease or sickness prior either. Explain

Sent from my iPhone using Tapatalk

Tripod1404 · 06/23/2018, 03:20 PM

You brought a diseases like brooks or velvet with the angelfish. You already said angelfish had white spots and slime, those are signs of both diseases. Those diseases can show no symptoms and then kill all the fish in few days (sometimes overnight) after symptoms appear. Water change was just a coincidence.

An ammonia spike big enough to kill fish would have killed snails and crabs before. Plus detritus in your filter is already broken down by bacteria (its mostly bacterial biofilm). Releasing it wont cause an ammonia spike.

06/23/2018, 12:07 PM	#1
Slammed01 Registered Member Join Date: May 2006 Location: Bay Area, Ca 925 Posts: 416	HOB filter killed fish or parasite? Hi all! I’m starting to think that it was stagnant water in my HOB filter. What are the odds stagnant water/detritus was released when I pulled my dirty filter cartridge poisoned my fish and not snails? I lost all my fish at the same time, I feel like a parasite would have effected fish 1 by 1 or noticed symptoms. goby jumped out, tang died and clowns I couldn’t find (crab food). Had a coral beauty 3 weeks prior and was healthy then after 2 days he developed white spots (not ich, maybe a slime can’t remember honestly) around his eye and a bit on side and was swimming at top so I pulled him. Then I read angels can do that a can come and go. Just don’t want to leave a fallow tank if I don’t have to! Sent from my iPhone using Tapatalk __________________ 46 Gallon Bowfront Homemade Canopy Emperor 400,Seaclone 100, Reefbreeders value 24" 120watt LEDs, 2 Koralia 750s Current Tank Info: 54 Gallon corner on order

06/23/2018, 03:10 PM	#4
Slammed01 Registered Member Join Date: May 2006 Location: Bay Area, Ca 925 Posts: 416	None showed signs of disease or sickness prior either. Explain Sent from my iPhone using Tapatalk __________________ 46 Gallon Bowfront Homemade Canopy Emperor 400,Seaclone 100, Reefbreeders value 24" 120watt LEDs, 2 Koralia 750s Current Tank Info: 54 Gallon corner on order

06/23/2018, 02:53 PM	#2
Tripod1404 Registered Member Join Date: Mar 2016 Posts: 1,821	No, a disease killed your fish. There is no reason for it to take fish out 1 by 1, any disease is more likely to infect all fish, all at once.

06/23/2018, 03:20 PM	#5
Tripod1404 Registered Member Join Date: Mar 2016 Posts: 1,821	You brought a diseases like brooks or velvet with the angelfish. You already said angelfish had white spots and slime, those are signs of both diseases. Those diseases can show no symptoms and then kill all the fish in few days (sometimes overnight) after symptoms appear. Water change was just a coincidence. An ammonia spike big enough to kill fish would have killed snails and crabs before. Plus detritus in your filter is already broken down by bacteria (its mostly bacterial biofilm). Releasing it wont cause an ammonia spike.