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I was going to increase the barbs and/or the catfish but my daughter has a real interest in getting some hatchet fish for the home tank and I have put off even considering it until now, they aren't really my favourite type of fish. Catfish are established, barbs have been there for months now, filter is setup for a much calmer surface (still water now) my nitrates are zero so the system is handling measurable toxins and whatnot very well. So one more shoal of small fish would finish off the tank loading.
Marble hatchetfish actually are suitable for my water parameters, which I didn't really think they would be, and they are smallish, max is about 1.5". The barbs hang out in the bottom half to middle mostly, catfish on the bottom so a small group of surface dwellers would be great.
I was figuring on a minimum of 8, perhaps more if they are small... up to 12.
I am still dealing with having a betta in the tank which is my only real concern. So far there has been no indication of aggression toward any of the other fish, the marbles are not going to be an overly active fish and certainly not brightly coloured so I don't anticipate any problems. I can't see these guys ever being nippers either.
Jeff.
Marble hatchetfish actually are suitable for my water parameters, which I didn't really think they would be, and they are smallish, max is about 1.5". The barbs hang out in the bottom half to middle mostly, catfish on the bottom so a small group of surface dwellers would be great.
I was figuring on a minimum of 8, perhaps more if they are small... up to 12.
I am still dealing with having a betta in the tank which is my only real concern. So far there has been no indication of aggression toward any of the other fish, the marbles are not going to be an overly active fish and certainly not brightly coloured so I don't anticipate any problems. I can't see these guys ever being nippers either.
Jeff.