Hi there,
I am hoping someone here can help me as I am at my wits end. Since upgrading my tank from a 70 litre to a 125 I have had nothing but deaths. At first I was putting it down to old age, as the majority of the fish that were dying were from my very first Fluval Edge tank and so were 3-4 years old. However it has continued and I am so fed up of losing poor fish.
Just in the last few weeks I have lost a honey gourami, cherry barb, a baby Angel, a loach, a panda cory and a swordtail. Over the time I have had this tank all I have had is bad luck.
I do weekly water changes of at least 20%. Because of all the deaths I did a larger one yesterday, probably 40%, yet when I have checked my stats today I have slight ammonia (0.25) and no nitrates?
I have never really had any troubles with my water stats, so I dont think it can all boil down to that, this seems to be a recent thing.
This has been the only tank in which I have used sand, both of my other ones were gravel based. changing the substrate to a tank that has had different fish load in will effect the water stats. With a good thorough clean out you have removed all the good bacteria in the gravel/sand, with the filter being turned off for a length of time will cause the bacteria to die off there too.Would this have any implications? Such as harbouring bad bacteria or toxins?you have taken the good bacteria away from the substrate Some of the sand that is up against the glass has turned a greenish colour, but I try to move it about so that too much algae doesnt grow on it. warmth and light = Algae
I use API Stress Coat as a dechlorinator and yesterday added a dose of white spot treatment, as I just cant nail what is wrong.
Does anyone have any idea what I could be doing wrong? i would say the good bacteria have died off, thus not being able to sustain your bioload, hence the Ammonia present and the lack of ANY Nitrates.
If you need any extra info just ask, I just didnt really know what to put other than HELP!
Amy xx