


I need some expert advice before I manage to kill anymore of my fish! My last hope=find a fish forum and speak to some fish experts
I decided to take the plunge and go for a tropical fish tank as my first fish keeping experience 3 weeks ago. I bought one of these biofilters as I thought they looked good and they sounded great


I heated the water to 82deg in the tank with a thermometer/heater combi and a day later stocked it with 6 tetras, 4platys, 2 angels, a swordtail, a catfish algae eater and a siamese fighter, and 5 plants which I don't know the name of, and a tropical light. I realise now that may have been too many but I took the advice of the pet shop owner with regards to numbers and combinations.
Within 2 days both angels and a platy had died, and fighter really wasn't looking too happy at all. I realised that I needed to have a pump to activate the filter (I was disillusioned into thinking the biofilter was all I needed) and they had probably died of lack of oxygen so sorted myself out with a pump.
Then about a week ago I spotted whitespot on the tetras, and on a couple of platys, then on the catfish and the fighter. I went back to the pet shop (who incidently gave me a credit note for the angel fish although that didn't make me fell less guilty) and they gave me some drops 1 drop per 7 litres every 48hours. I gave the first dose 2 days ago, and went away for a couple of days, then returned this afternoon and 4 tetras and swordtail were all dead surrounded in a weird white film of goo that looked like a cacoon or something. Fighter looks like he's on his last legs, and the platys keep nipping him.
Oh other pointers, i've been vary careful to feed only a small pinch of food every evening, and i've had 2 tests on my water and apparently my ammonia levels are OK, and i've been treating water with the conditioner bought at the pet shop and some water from a kettle to warm it up slightly.
Now I feel really bad, thats over half my fish dead within 3 weeks




Can anyone answer the following:
What should i do to avoid more fish death?
What caused the second round of fish death do you think it is something to do with the whitespot? or the medicine? or the general setting up of the cycle?
Does anyone have any specific advice regarding the biofilter?
Is 83 deg the correct temperature?
I've been under the impression the more light the better for my plants to oxygenise the water, is this correct?
Is it good to have plants?
Do fighters always hide in holes and look really upset?
I realise now that I rushed into things a bit and have probably made some common mistakes, but any advice would be gratefully received before i'm scared off ever keeping any more fish again!