Fry Keeper In-Tank Quick & Easy

Good to know. Thanks.

I have inside and outside boxes. Let me know what you are looking for.

I believe that the “Lustar Picture Window Fish Breeder” is no longer being manufactured.

Another observation I noticed with the Lee's 3-way box is that it actually floats at the right level without the lid. It is only when the added weight of the lid is added that it sinks low enough in the water for fry to escape the holes I drilled in the lid. I might just try it without the lid to see if I have better luck. This will likely make the divider unusable as well as that may add too much weight too.

ScubaDiver wrote: These hang on the inside so they dont float, so water changes can tricky but they are the best alternative i have found to the outside boxes.

jehmco.com/html/nets_-_breeder_boxes.html

I had tried making side of the tank hooks for the Lee's boxes out of wire hangers. This worked but I encountered the issue with water changes as well as just everyday water evaporation depleting the water level in the fry box. Also the hanger wire rusts quickly. I added air line tubing around the wire to protect the tank rim and glass and keep the rust off the glass lid, but I still wonder if any rust works itself into the water if that will become harmful to the adult fish.

Could anyone recommend a specific brand / model of In-Tank Fry Keeper they have had success with using in larger tanks containing adults?
Fry Keeper traits I'm interested in include:
- floats in-tank (so no additional heater required)
- no electricity or other hardware like an air line/pump required
- good water circulation so uneaten food doesn't affect water quality
- good value price so you can sock a handful away to pull out when needed

I'm currently using Lee's 3-Way Breeder which I chose because it floats in-tank, has side vents for good water circulation, and a lid to prevent fry from escaping into the tank with hungry adult fish. While the lid on the Lee's 3-way is nice it is not convenient for feeding multiple times a day and the fry can be startled and jump when removing the lid. I drilled some very small holes in the lid to accommodate feeding, however any hole large enough to be adequate for feeding have allowed both my fry and jumping belly whoppers to escape. It appears the Lee's floats too low allowing the water level in the Fry Keeper to reach to the lids ceiling, allowing fry to swim to the top and right out any small opening.

I also have and like the Marina, Large Hang-On Holding & Breeding Box which works well for what it is, however it does require its own good air line source and space around the tank. I only have limited space for these since I don't (yet) have a dedicated "Fish Room" and my tanks are scattered around my house and have separate HOB filters and individual air pumps.

Any better alternative suggestions would be appreciated. Thanks for reading.