Moving Cory catfish to another tank

Colin_T said:

Why is the pH different and what is the pH in both tanks?

If the pH is 7.0 in one tank and 7.4 in the other tank, it should be fine to just catch the fish and move them across. However, if the difference in the pH is more, then you will have to acclimatise them over a day

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steph.j said:

Hi , my daughter has a 25 litre tank with a male Betta and 2 small Cory catfish . They’ve been together a month now but recently we’ve noticed that the Betta chases the catfish round a lot . After researching , I’ve found out that catfish shouldn’t be in tank that size plus they should be kept in bigger groups (fish shop never told me that and I told them the details of tank ).
So basically I was thinking of moving the Cory’s over to my 168litre tank which currently has lots of platy fry (12), 1 grown platy, 6 tetras and a bristlenose plec . Is there a good way of doing this ? Also the ph in both tanks are different, will this be a problem ?
Thanks in advance
Steph

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steph.j said:

I literally have no idea why the ph is different . The small tank is about 7.5 and the big tank is about 8

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Slaphppy7 said:

Do you use the same source water when doing water changes, for both tanks?
How long has each tank been set up?
What kind of test kit are you using to measure ph?

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Slaphppy7 said:

Do you use the same source water when doing water changes, for both tanks?
How long has each tank been set up?
What kind of test kit are you using to measure ph?

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Slaphppy7 said:

Just to err on the side of caution, I believe I would do as suggested above, put the corys into a bucket or small bin, with water from the smaller tank, and add a bit of water from the larger tank in increments, over a period of time, to acclimate them to the slightly higher ph of the bigger tank.

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UnknownFishies said:

I would suggest a API master test kit since strips aren’t that accurate.

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UnknownFishies said:

wow... i thought the color comparison thing was a strip. I feel really dumb right now...

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steph.j said:

Ok great. How long would you leave them in the tub for before putting them in the tank

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