Fluval Multi-Chamber Holding and Breeding Box, Medium

very nice for raising my pepper cory catfish babies. saves me a lot of room in the main tank. they give you an air valve i suggest you install. by turning the air down i was able to eliminate the noise it made. this will make keeping their area clean easier. i had them in a net box, very hard to keep clean. so far no leaking and the catfish seem happy. i dont plan on using this much, i have way too many catfish now! hopefully, it holds up until these babies are ready to go into main tank.

It works great. I only had to do a small alteration by cutting up a net and putting it over the outflow so some of the smaller fry wouldn’t fall out. But other than that, it works great!!

The media could not be loaded. Works as it should. It does make a bit of noise like a gurgle but it’s better then having no flow and it’s quieter then my HOB filter. Took a star off because of the packaging. It has no bubble wrap or anything so a piece of the water fall was broken off and some scratches on the item, neither which I felt a return was needed

Years ago, I had a fish give birth only to have the fry get IMMEDIATELEY eaten by its mother. I was so sad and disappointed. I new I had to get a "Breeder Box". I got a super cheap one that just sits inside the tank. I mainly used it to let the fry mature a little bit before getting moved back into the main tank, or help heal a fish that was getting bullied recover its strength before rejoining his friends. After many months of tryin to find out why some fish that I put in there died immediately. I came to the conclusion that the water flow in this box was so so poor that all of the waste was being stored in the box and there was not adequate oxygen getting into the box through the small slits on the sides.Then I found the Fluval Multi-Chamber holding and breeding box and holy cow, what a difference. It incredibly easy and intuitive to set up, and is absolutely the perfect size for almost any application. Even on relatively small tank like a 10 gal. Currently, I have a Molly with a fin injury in one compartment, and the other 2/3rds of the tank are housing her baby fry. The room that I keep one of my tanks in, which currently has the Fluval box on in, gets very cold at night, 60-61 degrees. I was worried that since it hangs off the front and is just plastic that the temp in the box would lower drastically. I am happy to report that the temperature did not budge from the main tank temp with no additional heaters or anything, i have a 50w and a 25 w heater in the tank, but I'm confident that you could be perfectly fine with just one 25 or 50W depending on the ambient temperature of the room. The only thing i would be mindful of, is trying to keep super small fry (I'm talking 1-2 days old) in the left portion of the tank. I had a single fry get pressed up against the grate the flows back into the tank. I don't know if he was sick or weak, or if the current got him, but in thousands of fry run through this box, I've only had a single loss. so my best practice, if you don't need the whole box, is to partition off the far right slot, put your fish in the left and put the drain with the bigger slats in the outflow spot on the right. That allows more water to flow through the box and greatly decreases build up of debris (if you're like me and have a heavy hand when it comes to feeding fry.The only problem with this box is that I don't have one for all of my tanks!

The media could not be loaded. Very nice breeder box, I love the set up of it. I had to modify it slightly with some filter sponge because I have baby rasboras and they’re so small they could swim out of the water output. Also put some on the end of the tube to quiet and slow the water coming in. Overall, I’m very happy with it.

So I've bred peacock gudgeons and hatched most of the eggs within this container. It was attached to its own little 5 gallon tank with a HOB with carbon and extra sponge for proper filtration, keeping nitrate and nitrite at 0 despite the several-times-a-day feedings.The box definitely has potential to turn your fry container into a fry washing machine, little guys get tumbled around from the flow. The little adjuster on the airline itself did nothing for me, so I had mine hooked up to the system of my rack that let me change airflow directly from the pump. Had to lower that a decent chunk, otherwise the water flow was simply too strong. Even with that, I put some aquarium sponge on a little skewer and placed it right under the water output to catch most of the impact. I also added a piece of sponge on the outflow, because the little grate it comes with is just too big. My little fry kept escaping. I eventually learned that my fry are even small enough to go into and through the damn sponge I put in there, so I had to use something finer (which clogged easier).I also added some floaters and java moss to help with both filtration and hiding space for my little buggers.Unless you have fry that's too big to go through the little grate you definitely will need modifications. But besides all that, it's a fantastic option for hatching eggs and raising fry. My little guys are by now big enough to swim in the 5g freely while growing a little more without risk of ending up in the HOB.Given how well this entire setup worked for me I'll be getting more in the future. I've yet to try it for egg scatterers along with the one item from I believe penplax for automatic egg-harvesting, but I'll get there. And for that I'll need another one! I definitely can recommend it. It kept all my fry in a small space meaning I could give them more accurate feedings, and hook it up to its own tank to have a big water volume for great parameters. Amazing!