PlanetCatfish.com

I am setting up a 125 gallon tank with a pair of Rena Filstar XP3's for filtration. Last week I added one of the large packages of bio-spira and a dozen zebra danios. Assuming that the bio-spira was still good and I have no ammonia/nitrites, when would be an appropriate time to add c. julii, c. schwartzi, and perhaps c. panda if I can't get enough of the first two. I eventually would like ~20, and was thinking of adding a dozen or so now.

I would add less than a dozen fish at one time - at least once you got the tank initially cycled. It does depend a little on the size of the fish, but if they are average sized, I'd say adding 5-6 of them at the time is a better idea. That gives the bacteria time to build up. You can probably add one lot of fish every week once you've got the first lot...

So what else do you plan to have in the tank, besides a dozen of zebra danios and twenty or so cory's?

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Mats

Towards the end of October I am hoping to add a bristlenose or two. In December I am hoping for L-190. After that perhaps a few more L-#'s if I can get my hands on. Depending on avaliablility probably some loaches too.

Somewhere down the line I might even have to break down and get something with some color like neon tetras, or maybe even something that doesn't live on the bottom layer.

A good tetra for a tank as large as yours would be a school of Hyphessobrycon erythrostigma, the "true" Bleeding Heart Tetra. They get to be a good solid 2-1/2in and a group 0f 8-10 would be nice. They are peaceful enough to keep with smaller fish and large enough to be kept with larger fish, too. The trick is to avoid Hyphessobrycon socolofi a Bleeding Heart look alike that grows to only 1-1/2 inches and is less showy. The Bleeding Hearts are good for the midwater action.