discus dreamer
Fish Fanatic
Hi I need help
have rescaped my Juwel 60 tank, getting rid of the boxed in section (I already had a seperate internal filter running) and replacing the gravel with sand. I kept about 30% of the old water. I moved my 5 cory sterbia to the hospital tank and for a few days until the tank had settled a bit (the water has still not cleared perfectly - added some filter wool to the sponge filter and that has helped). They have now been in the new set up for about two weeks and do not seem happy with it. They hide at the back under plants most of the time and if they do venture out they dash back as soon as anyone approaches the tank, which they didn't do before. Two days ago I added two black widow tetras from my main tank just in case having other fish moving in the upper levels would help a bit but no the black widows also now hide at the back sitting near the bottom and have lost most of their black colour like when they are stressed.
I thought it might be the bright reflectiveness of the sand that was the problem so moved a plant to the front and put in a largish piece of slate to make a darker area but no change in their behaviour. There has been a slight increase in Ph that tank was usually about 6.8 and at the moment it is 7.2. (could be that the yeast fed CO2 is about run out) the Ammonia is 0.
I thought that cories were supposed to prefer sand to gravel but mine seem to be treating the change over as a real loss in their conditions. Any ideas? Should I go back to gravel?
thanks
DD
have rescaped my Juwel 60 tank, getting rid of the boxed in section (I already had a seperate internal filter running) and replacing the gravel with sand. I kept about 30% of the old water. I moved my 5 cory sterbia to the hospital tank and for a few days until the tank had settled a bit (the water has still not cleared perfectly - added some filter wool to the sponge filter and that has helped). They have now been in the new set up for about two weeks and do not seem happy with it. They hide at the back under plants most of the time and if they do venture out they dash back as soon as anyone approaches the tank, which they didn't do before. Two days ago I added two black widow tetras from my main tank just in case having other fish moving in the upper levels would help a bit but no the black widows also now hide at the back sitting near the bottom and have lost most of their black colour like when they are stressed.
I thought it might be the bright reflectiveness of the sand that was the problem so moved a plant to the front and put in a largish piece of slate to make a darker area but no change in their behaviour. There has been a slight increase in Ph that tank was usually about 6.8 and at the moment it is 7.2. (could be that the yeast fed CO2 is about run out) the Ammonia is 0.
I thought that cories were supposed to prefer sand to gravel but mine seem to be treating the change over as a real loss in their conditions. Any ideas? Should I go back to gravel?
thanks
DD
