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Do i need to take all the water out before i can add new fish, or can someone just tell me what i have to do before i add new fish.

2007-04-07 15:16:09 · 9 answers · asked by Tyler G 1 in Pets Fish

9 answers

No need to drain the tank, that would mess up the cycle. Since you don't know what killed your fish, it's a bad idea to treat the tank with anything at all and especially not an antibacterial agent, that would completely trash the cycle. I would suggest you do a really good gravel cleaning and big water change (like 50% or more) then let the tank sit empty for several days to a week. Feed the tank a pinch or so of flake food every day just like there was a small fish in there. This will keep the cycle going while anything bad in the tank dies off. Fish diseases and parasites can't live without fish, so within a week they will all be gone even without medications.

MM

2007-04-07 15:30:28 · answer #1 · answered by magicman116 7 · 2 2

If the fish died of disease,it would be good to change the water,rather than treat it. If it died not due to water conditions,do a 30 % water change. Vacuum the gravel when you do the water change. Add some salt and warm the water and check conditions before introducing a new fish.

2007-04-07 16:07:52 · answer #2 · answered by DAGIM 4 · 0 0

most fish actually have quite long lifespans if looked after properly. goldfish for instance live around 20 years.

therefore, it is highly unlikely that your fish died of natural causes. So, you need to clean out the tank thoroughly to get rid of any bacteria/ fungus that probably killed the original fish or it will kill any new fish also.

drain it completely, rinse any rocks or plants well and wipe down the sides. dont use any chemicals.
then refill the tank and treat it with a bacterial cure - you can treat it with the new fish in it just in case they have something from the pet shop too.
.

2007-04-07 15:28:59 · answer #3 · answered by raspberryswirrrl 6 · 0 1

NO, it would restart your cycle. I would just take some water to get tested and make sure it's safe to add fish. That way, you can also find out what happened to your fish that passed.

2007-04-07 16:50:47 · answer #4 · answered by sewingmom 3 · 0 1

Remove some of the water if the fish died the same day. It Will be OK with dead organisms water. Its just like the wild! You could feed the fish to bigger fish or throw it away. ( i fed mine to my piranha)

2007-04-07 15:27:07 · answer #5 · answered by Asphodel 4 · 1 2

i wouldnt, depending on how long your fish was in there the water could already have a good cycle going

2007-04-07 15:24:19 · answer #6 · answered by Ajaxnl 5 · 1 1

yes it is recommended due to the change in the ph level not to mention if it was sick the contamination associated because of that. To be safe I would also boil the gravel .

2007-04-07 15:22:09 · answer #7 · answered by tigerstoy 1 · 0 1

you should but it isn't nessary if there is no blood another reason is the water could be dirty tho if it being dirty is the reason the other one died then clean it you can never be to sure

2007-04-07 15:20:02 · answer #8 · answered by jose r 2 · 2 1

get the water check by your local pet store...or just drain it and refill it

2007-04-07 19:54:08 · answer #9 · answered by Brian 2 · 0 1

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