Is your tank cycled?
Possibly this could be a bacterial bloom?
Could you give a bit more details, tank size, when you got it and how long has it been running for and how long you fish stock has been in your tank, was there any symptoms from your fish before they passed? gasping at surface of water? swimming erratically? red gills? etc
If your tank is cycled, how did you cycle the tank?
These may help determine whats going on.
Unlikely fin rot would kill your fish, or even the meds would kill them either, but may be wrong here. What meds did you treat tank with?
BTW, DO get a liquid test kit, extremely useful and basically a must for most keepers. API ones are fine, about £20 to £30 depending where you buy it from, online on eBay or Amazon is cheapest.
Hi yes my tank was cycled its been running for roughly seven months, its a 35 gallon tank and iv'e had the fish about the same time maybe about 6 months. They were coming to the top to get air yesterday night when it was cloudy, I have a bubbler but i normally turn it off at night do you recommend it to be on at all times? The medicine i used is interpet anti fungus and finrot.
Meeresstille said:
What colour was the cloudiness?
Usually white cloudiness is a bacterial bloom, green cloudiness is algae.
When there is a bacterial bloom, the bacteria (which is not the beneficial kind) they use up oxygen in the tank, so you need to keep an eye on aeration and not letting it get too cloudy!
Hi this is a pic of how it was in the morning, how do i prevent the cloudiness/fix it now?
Thanks for the reply
mark4785 said:
It sounds like you are describing an algae bloom. Cloudy water is often a precursor to green water algae. If you found that your fish died during lights out, I would speculate that an algae bloom consumed the remaining oxygen in your water to propagate itself. Algae is only useful during periods of the day when photosynthesis takes place (when the algae takes up co2 and nutrients out of the water) but is deadly when, during lights out, it uses up oxygen to the point that it could leave none left for the fish to use AND cause big PH changes which can also kill depending on the degree of the PH change.
Are any of your remaining fish gasping for air, do they have an increased gill movement or do they have mucosa around the gills?
It doesn't look like there gasping for air at the moment, what should i do now keep the bubbler on? Can you check out this pic for me please would you say this is finrot?