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my fish are dying

(9 Posts)
candr Thu 13-Sep-12 20:41:01

Have a 200ltr tank that has a few mixed tropical fish and some live plants in that get nibbled. Did water tests yesterday and all fine so just put small amount of 'water clear' in and today one barb died and another plus two platys seem ill.
Have changed some of the water but worry that the plants dying may have been the cause as stones around them have all gone green quickly but nowehere else in tank.
Is it plants, over feeding or the liquid I put in?

amillionyears Thu 13-Sep-12 20:44:21

I am no expert,but I would try changing most of the water right away

candr Thu 13-Sep-12 20:56:44

The other 2 barbs have now died - nothing visable that is strange about them. Will do water change tommorow - other fish all seem fine (tetras, minows, catfish, platys, guppys)
Had hoped a catfish would help keep gravel clean but think I may have overfed (one large pinch a day - 16 fish) but lots seems to fall straight to bottom.
Should I get new plants?

amillionyears Thu 13-Sep-12 21:49:32

sorry,didnt notice you had reposted
I was expecting others with more knowledge to have come on by now
also realise you may be talking about warm water fish,whereas we have coldwater goldfish.
with goldfish,changing water and cleaning out pump if necessary,clearing out plants,giving tank a clean,and putting in appropriate fish medicine should stop further losses,all done as soon as possible.
overfeeding isnt good
best to get new plants just in case I would have thought

LadyInPink Thu 13-Sep-12 21:57:29

I wouldn't recommend changing most of the water, it's usually recommend that you change 10-20% max as changing too much can shock the fish and kill them off. We had problems a few months back and found this link most useful:

It sounds like you have an awful lot of fish despite the 200L tank. Also whatever food they don't eat, scoop back up with a fish net so it doesn't rot and fester in the stones. Usually allow 10 mins for them to eat. We also use a plastic tube to suck up the debris once a week too from in and around the stones and plants where they poo and feed.

Sorry to hear you're having problems though.

Marne Thu 13-Sep-12 22:09:41

I agree with the others, do a bigger water change ASAP, remove any green gunk left from the plant, remove any un-eaten food with gravel vacume (if you have one). Fingers crossed you dont loose anymore, sadly sometimes these things just happen, i lost 3 fish a few weeks ago (2 tetras and a guppy) they had no signs of illness. Catfish dont keep the gravel clean, tbh they cause more waste (mine poo's for england).

amillionyears Thu 13-Sep-12 22:15:09

fwiw,when we water change with the goldfish,we always change at least 50% at a time.It has never caused a problem.

candr Fri 14-Sep-12 20:46:05

Thanks all, how does a gravel vacume work?
No more deaths yet! - did a 10% water change and removed dying bits of plant.

Marne Fri 14-Sep-12 21:14:26

The vacumes really easy to use and they dont cost much, they just suck all the poo out of the gravel, i quite enjoy vaccuming (i know i'm odd) as i'm alway supprised how much poo a few fish can produce. It also sucks up all the un-eaten food.

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