huby123uk said:
He has given me some filter medium that is supposed to take out all chemicals. I also have got some more bacteria tablets for the filter as he has advised me to clean this fully - but clean it with water from the fish tank (i.e. take a bucket out of the tank, clean the filter stuff with it and then top the tank up with a bucket of clean water.
Huby,
Sounds like he's has given you activated carbon, which is what WWW was pushing you towards earlier. This should remove all the chemicals......
The reason I asked you about your filter floss is that the majority of the nitrification bacteria is held in your filter media (floss), so by replacing it all you basically threw away about 80% of the bacteria you required. I'm not sure how much you do know so if I am teaching you to suck eggs please forgive me. But here goes.....
You may want up the % of water you change weekly to about 20 - 25%. Anything you clean for or from the tank should be rinsed in water you have removed from the tank during the water change.
Once a week remove the filter floss and rinse all the crud out in the old tank water again (then use the cruddy water on household plants, they love it), replace the rinsed media back in the filter. If you do need to replace it do in in say 30% chunks over a period of three or four weeks.
Keep the carbon in for a couple of weeks then replace it with either new carbon if you feel it is still required or replace it with normal filter media.
Finally make sure you have a gravel vac to ensure the substrate is cleaned weekly......
HTH a bit & I am glad you seem to be getting sorted......
Ps Do me a favour and keep an eye on the ammonia & Nitrtite levels for a few weeks.....