Help Me Please

[mountney]

hi all ,

i have community tank, with guppies mollies trigger fish dinnos korries flying foxes large shrimp neons and a small plecko....... over last week i been losin my guppies ..... but some are missin heads and fins and some have nuffin seem to be wrong.... i must of lost at 20 over last week

i change the water , added new filter and still to be honest there no change overall , still they are dying ....,



i do know alittle and there no dieases or the normal reasons of death for fish i knew of that my fish are dying / being attack


only other thing a korry has a large lump under his skin which is almost same size as its main body
please help me

 

[Westwood]

You say you have added a new filter? Did you put the old sponges in the new filter?
If not your fish will have died from ammonia poisoning, as you have removed all the beneficial bacteria.
If you still have any fish, you should do a large water change may be 80% depending on the tank size, and then you will have to start doing a fish in cycle to get the good bacteria back in to the filter (see resource centre)
If you have no fish left, you will need to start a fish less cycle. (also see resource centre)

Also welcome to the Forum! I'm sure all of us on here will be able to help you get things back to normal!

 

[mountney]

no i didnt change just add new one and dont explain the missing head and i done two 50 % within a week?

 

[mountney]

i done wot u said as well today hopeful i have some left ...........i lost most of them now i had about 150/200 now i have 30 the rest are /

seem to be fine thanks

 

[This Old Spouse]

How big is your tank?

 

[Blubble37]

oh dear, another sorry case this!

Change the water regularly, get a picture of the lump on the fish, give us some test readings and temperature and also tell us what filters you have in there, how long you have had them for etc...

Are you treating the water with anything?

Have you got an airator?

If you havent got a test kit, this may be part of the reason they are dying as you will not have been able to test regularly and see the levels rising to potentially dangerous levels.

 

[mountney]

the tank is 100L

thery wer fine for last 3 week all sudden i find groups of 6/10 dead at the bottom the tank

yes air pump , just the week nitrite and anom liquid and water changes twice a week ..... 10% to 25% depending on my other tanks ( i have eight lagre tank and 5 smaller ones )




water tem 28c .....

nitrite is a no and ph is good i know these as these are frist thing i thought of

i have a triple fitler and a large spounge filter
both in use for for few months put a new spounge in but remove it as it was needed as i had a break down in smaller tank
im trying the fish cycle.......as i my brother done the cleaning of filters in tap water (never letting him help again) but he didnt abmit these till last night so i am hoping its the lack of 'gd bact'

test weekly*

 

[Jenste]

I am sorry, but did you say you had 150-200 guppies in a 100 liter tank AND other fish? you are unbelievably over stocked - -

can you post your exact stocking - species and how many of each so we can have an idea of what you have. I have a feeling that the overcrowding has led to horrible water conditions.

 

[mountney]

less than 30 guppies now 4 mollies 1 mal 3 sword taila 6 cories 2 foxes 8 dino 3 shimp i plec 2 small angles two fighters(male and female) they breed reg.... c babies reg, but i was given the and thery were on their own in 60l then i put in with mine ??? (the guppies)

 

[Blubble37]

what did you have originally though?

and what filters got tap washed?

 

[mountney]

everthing par the guppies the ones in the tank in question ,

 

[Jenste]

yes but knowing what the ORIGINAL stock was before all the deaths will help us figure out if it was a problem

 

[Caprichoso]

the tank is 100L

thery wer fine for last 3 week all sudden i find groups of 6/10 dead at the bottom the tank

yes air pump , just the week nitrite and anom liquid and water changes twice a week ..... 10% to 25% depending on my other tanks ( i have eight lagre tank and 5 smaller ones )




water tem 28c .....

nitrite is a no and ph is good i know these as these are frist thing i thought of

i have a triple fitler and a large spounge filter
both in use for for few months put a new spounge in but remove it as it was needed as i had a break down in smaller tank
im trying the fish cycle.......as i my brother done the cleaning of filters in tap water (never letting him help again) but he didnt abmit these till last night so i am hoping its the lack of 'gd bact'

test weekly*

You had 200 fish in a 100litre tank? That is most likely why they are dying off. If you have more fish waste than your biological filter can deal with then you are going to have a spike in ammonia and nitrite. High levels of either of these will kill your fish faster than you can blink an eye. How often and how much of a water change are you doing each week. What type of filter do you have? How many filter inserts do you have and what type of inserts are they, example, sponge, filter floss, bio rings, etc. When you added all those fish, things may have "seemed" ok at first but that's because it can take a bit of time before the fish waste builds up in the tank...then things can go badly very quickly I'm afraid. The missing body parts can be from other fish eating the body after it's dead...or some of those fish you have could be aggressive I don't know what "dino" or "fox" fishes are or if they are aggressive or not.