Most Fish Have Suddenly Died!

[01hmyoung]

ok i need help with my dads fish tank. its been up and running coming up for year now. most fish survived except a few odd one. we left it for a couple of month , then the other day we brought a few new fish, i think 5 in total. since adding these fish most of my fish have dies only a few have lived and it has all happened since we added the new fish.

i have alway thought it was our filter, since before christmas the tank has been very dirty and has loads of waste on bottonm and bit floating around. my ddad has always said it not the filter that isnt working. i have made a video in a hope one of ypu guys can help me solve this problem.

link to videp

sorry for my spelling not very good!!!

thanks!!!

 

[fishyfeet]

have you tried testing the water, this would give you the answer, nitrites, nitrates and ammonia are the main ones, i assume with the additional fish and the filter not working properly there was an ammonia spike, but i would have thought this would be the case without the additional fish though. The only way to know for sure is without cleaning the tank or changing water first test the water its the first thing i do if more than one or two fish die, that and do a major water change.

 

[01hmyoung]

we are popping to the local store tomorrow to do a few test on the water.

is the filter not doinf the job to well with all the bit floating about. would you suggest a new filter?

 

[onebto]

do you clean the tank and change the water at all?

How often and how much water do you change? do you use a gravel vac ?

 

[01hmyoung]

yeh we change a quater ever 2 week!! we also use a gravel vac

 

[guppi]

You need the water stats first, then change half the water. I would clean the filter it looks like it need a service, I suggest you clean it in old tank water, not under the tap.

 

[onebto]

When yougo to the store get them to give you the readings a lot of them will usually just say "yep that's okay" oh and ask what they tested the water with if they are test strips then be advised they are widely thought to be very inaccurate.

Regards onebto

 

[01hmyoung]

i will report back tomorrow woth the test results thanks

 

[roofer no1]

i will report back tomorrow woth the test results thanks

hi i would think you probably have a nitrite problem due to care of your fillter it looks like it could do with a service and clean you could be over feeding this will cause levels to rise aswell.