So I have been having issues with my 30 gallon semi aggressive. The fish in the tank seem very lethargic. Until today I have been pulling a dead fish out a day. The thing that confuses me is that the Dwarf gouramis, redtailed shark and the yo-yo loaches. The barbs just keep dieing as well as a few of my danios just dropped off.
The water parameters
Ammonia- 0 (it spiked to .25 earlier in the week but i kept it under control with a simple water change and it has been fine since)
Nitrates and nitrates are both within there acceptable parameters
one of the barbs did have ich but i treated and it was fine after the three days of treatment I really have no clue what is going on and am afraid to do anything with the tank until i find out what this epidemic is.
The tank has been runningn for 6 months plus the newest additions were 4 cherry barbs that was almost a month ago. there is a heater in there. I'm currently not at home but i believe the temp is around 73-76
Do the fish look like they are getting enough oxygen? That would make them slow and lethargic. Check to see if they are going to the surface for air. Is there a lot of algae in the tank? high phosphates?
there is a little brown algae but nothing to bad. I intially thought that as well but have had an airstone running in there for the last 3 weeks and it doesnt change anything.
Agreed, low oxygen and colder temps can make fish lethargic. Can also lower their immune systems to where it cant fight off things it normally would. I keep my tank at a firm 79 and it makes a HUGE difference. I also keep plants in there to keep my water quality and oxygen up.
yes, an air stone wouldn't make enough oxygen dissolve into the water fast enough. Water changes to bring in more oxygen, and plants to take up the bad and give out the good cant hurt.
The ich could still be there, on the lungs of your fish, making it harder for them to breath.
No they did not (don't worry being gross i picked them out with my hands and gave them a full look over) They did die with their mouths open but in the past this tends to be a pretty normal way for fish to die. There colors were alright and everything. I will continuing doing water changes and see if this makes any difference I have been doing about 25% every other day.
wow, mystery indeed. Can you take a water sample to your LFS and see if they will do a full water check for you? That might give you some information you don't already have.
Took a sample to the LFS and everything checked out oddly my 5 gallon tank of endler fry all seemed to die overnight as well as alot of the remaining fish in the semi aggressive. The loaches and Gouramis seem unaffected still. Now I am wondering what I should do to cleanse my tank so I can add more fish to it without them dieing on me as well.
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