Those with racks

[Hendre]

It's a linear diaphragm, shoulda cleared it up. 40 litres per minute is a bit overkill

I think 10-20 lpm is probably better, and piston too. no idea how I would get them, there is one man in my city that gets a LOT of equipment so hopefully he can help.

 

[paulW]

Do you have a picture of the German Red paradise fish? I am curious because I have a pair of "Red", and was wondering what the difference is. I am guessing the German Red look better. I do not have a whole lot of advice. My pair just built a bubble nest yesterday.
Male is keeping the female away from it, but not overly aggressive.
Male built bubblenest under a piece of styrofoam (kind of like a small inverted cup, next inside the cup area).. We will see how it goes.. Good luck with yours. I am going to let my first batch just hatch in the tank.. I might move Mom out now though.

 

[Hendre]

This is the line the importer has himself. I think what I would get is something similar


Good luck! That's why I plan on taking the nest out after spawning. They aren't so bad on aggression right?

My lone pavement special is very chilled with his barb mates

 

[Grinch]

Take a look at this to try and find the right pump size/type.

http://www.jehmco.com/html/central_air_pumps.html

True linear pistons are going to be overkill for you... go cheaper. It's not ALL about output, but since you are running pretty shallow tanks, you shouldn't have to worry too much about pressure curves. I think you are spot on with the output... somewhere around 10-15 LPM should be fine... 20LPM if you plan to expand.

 

[Hendre]

I think I'll ask a shop to run a boyu shop to test noise. will be able to get replacements and it's cheaper for now

 

[duanes]

I used to have breeding pairs of paradise fish spawn in my rain barrels. I'd toss a pair in the rain barrel in spring, and halfway thru summer pull out lots of juvies.
Because they are bubble nesters, and in nature come from fairly stagnant waters, you won't need lots of aeration. In fact too musch can be bad for the bubble nests.
What you will need is lots of semi-microscopic food, this is why the rain barrels worked well for me, they were choked with algae and its accompanying biota, and I would add daphnia cultures as the fish grew, along with the mosquito larvae that naturally showed up, so provided constant grazing.
They can be aggressive so growing them out in jars where water is partially changed daily also worked for me when winter set in.
I don't know how sensitive the reds are, but my common Macropodus never needed heat, and easily took temps down into the 50sF.

 

[Wailua Boy]

I think you are better off unheated with paradise fish as mentioned. I found them pretty easy to breed and almost any pair seemed to spawn, given a well planted tank with lots of hiding spots. They are not the most marketable fish, at least not in my region.

 

[Grinch]

Because they are bubble nesters, and in nature come from fairly stagnant waters, you won't need lots of aeration. In fact too musch can be bad for the bubble nests.

Good point. In that vein, lightly flowing box/corner filters might be your best bet for filtration in the breeding tanks. You can minimize surface disturbance by running the lid of a plastic container down the air-line tubing and letting it float above the filter... it'll calm the water down... but I don't think you'd need to worry about this much with a little box filter.

 

[Wailua Boy]

I would go natural and use floating plants as filtration.

 

[Wailua Boy]

For fry tanks, maybe add sponge filter...