My 10 Cardinals seem to spend most of their time hiding among the plants in my 180 litre rather than schooling around the tank; when the filters are off (for maintenance or after local application of easycarbo) they swim around the tank but at other times they are at the back of the tank. I do not have overpowering filters (a couple of Eheim 2217s and a koralia powerhead), but it looks like they do not like the flow. I know others keep these fish with more flow than me so is this a familiar scenario? Any advice?
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Cardinal Tetras and Flow
- Thread starter Greenview
- Start date
madlan
Member
I have a shoal of 50 - They would hide in the plants all day for over a month, now they have settled they are out and about regardless of flow.
FishyJake13
Member
- Joined
- 23 Nov 2011
- Messages
- 32
Kept on many occasions in very over filtered plec tanks and they loved the flow.
Are yours new additions?, they could be just getting used to there surrounds if so.
Are yours new additions?, they could be just getting used to there surrounds if so.
Alastair
Member
Ditto, I have 20 and they did the same but after introducing ten neons who swim all over they come out all the time now. They just need to settle in some more. Mine still occasionally go back for a hide
Thanks, so maybe not the flow then. They are not that new in the tank, they have been there for 4 months and were fine until I added 6 Black Phantom Tetras 2 months ago. It could be that these more recent additions are intimidating them, but this would not explain their visibility once the filters are off.
