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Diana K · 07-01-2009, 10:23 PM

I think your fish species are the wrong ones for such a small tank.
Most Rainbows are highly active fish are do much better in larger tanks. The 55 that did not fit would have worked just fine. A 30 is not big enough for their activity level.

2 dawrf danios: What species? Smaller Danios like Zebras are fine in a 30, larger ones such as Giants are not. Same problem as with the Rainbows: high level of activity.

2 loaches What species? Anything larger than a zebra Loach is a bit too big.

3 pictus catfish: Another very active species.

If the 30 gallon is the largest that you can handle, and are pushed for time I would return all these, and get a school of smaller fish, a few more Cories, and a few Otocinclus. Nothing over 3", or 2" if it is a highly active fish.
With a small bioload the tank will be easier to manage.

07-01-2009, 10:23 PM	#3 (permalink)
Diana K Senior Member Join Date: Dec 2007 Location: Near San Francisco Posts: 508 iTrader Ratings: 0 Plant Points: 26150	Re: the switch I think your fish species are the wrong ones for such a small tank. Most Rainbows are highly active fish are do much better in larger tanks. The 55 that did not fit would have worked just fine. A 30 is not big enough for their activity level. 2 dawrf danios: What species? Smaller Danios like Zebras are fine in a 30, larger ones such as Giants are not. Same problem as with the Rainbows: high level of activity. 2 loaches What species? Anything larger than a zebra Loach is a bit too big. 3 pictus catfish: Another very active species. If the 30 gallon is the largest that you can handle, and are pushed for time I would return all these, and get a school of smaller fish, a few more Cories, and a few Otocinclus. Nothing over 3", or 2" if it is a highly active fish. With a small bioload the tank will be easier to manage.