Aquarium Fish Tank Breeder Box BX-S

This is an early review since there are no baby guppies yet. There are holes in 2 sides of the lower tank, about 1mm wide. The divider between top and bottom has slightly wider slits about 1.5mm. There are a few slits in the lid as well. If the babies can slip through the bottom slits I believe I can block them in with a little gravel against the slits.Yes, it is very small, but the measurements were as described and I have a small tank. It lost a star for the tiny suction cups. I have to agree with the other reviewers in that I doubt they will hold. I will anchor it the best I can and let it float. This was still the best option for me since the 8” ones do not fit.

This works well for keeping fry safe until they are big enough to fend for themselves. My only complaint is that the suction cups seem to come off frequently and the box floats away sometimes.

Horrible product!!Live young were able to swim back theough grate Nd were eatten by mother!I lost ALL but 1 baby guppy.Will be returning ASAP!

This thing is garbage. The tiny suction cups provided won't stay suctioned to the side of the tank for more than 12 or so hours before coming off, and it you're gone the box just free floats around. Works well when it makes its way under the filter and the lid pops off, at which point the tank becomes a fry buffet.If it would actually stay attached i'd be satisfied, but it's nearly worthless if you don't keep an eye on it.

The small one is very small, not much room at all, even for guppies. Not what I expected. Although it is still quite nice, I would recommend the bigger size though.

It works good whenever my fish are picking on older fish. Haven’t used it yet for actual babies but I’m sure it works. It floats easily even without attaching it to the wall.

Keep in mind that this breeder box was meant for GUPPIES which are very small. It feels pretty solid and hold plant clippings, keeping my tank looking much nicer.

This box seemed like it was going to be great, but it has a couple of issues which make me reluctant to use it again. The problem for me is that 1) it doesn’t float and 2) the suction cups do not stick very well at all.The box fell off the wall of my tank and I lost a quarter of my fry. When it fell off a second time, I was able to rescue the fry and transfer them to a second tank. But I will not be using this box again.