Spender
Aquarium Advice Newbie
- Joined
- Jan 25, 2012
- Messages
- 9
Hi
I have had my topical freshwater fish tank set up for around 4 years with almost no problems until about a year ago. In the last year I have been struggling against some kind of black algae, it covers every surface of the tank including plants, gravel, glass, rocks etc, as soon as I scrape it off it comes back again within a couple of days. It has a peculiar odour as well kinda like you get in a damp forest in Autum if that makes sense. I do around 10% water change weekly, have replaced my lights for new ones and reduced the amount of time the lights are on to around 5 hours a day. My tank is 180 litres with two internal filters I bought a tea kit and my ph is 7, nitrite 0, nitrate 0, ammonia 0, chlorine 0. It doesn't seem to matter what I do this stuff always comes back, another strange thing is if I put any live bearers in the tank they always die within 3 days or so, my existing fish are fine.
I have posted a picture to try and show the problem
Kind regards
John
That picture was taken just a few days after scrubbing those rocks completely clean.
I have had my topical freshwater fish tank set up for around 4 years with almost no problems until about a year ago. In the last year I have been struggling against some kind of black algae, it covers every surface of the tank including plants, gravel, glass, rocks etc, as soon as I scrape it off it comes back again within a couple of days. It has a peculiar odour as well kinda like you get in a damp forest in Autum if that makes sense. I do around 10% water change weekly, have replaced my lights for new ones and reduced the amount of time the lights are on to around 5 hours a day. My tank is 180 litres with two internal filters I bought a tea kit and my ph is 7, nitrite 0, nitrate 0, ammonia 0, chlorine 0. It doesn't seem to matter what I do this stuff always comes back, another strange thing is if I put any live bearers in the tank they always die within 3 days or so, my existing fish are fine.
I have posted a picture to try and show the problem
Kind regards
John
That picture was taken just a few days after scrubbing those rocks completely clean.