the 4 sides can easily be locked tightly in place which is a plus but the net should be a tight larger. Fitment is a little tight!! Either way I reccomend this breeding net over the other brands.

I put a holding red zebra in the net until she spit the fry, 25 of the little guys. I immediately put her back in the main tank. All the fry are doing fine! It is so easy feeding them, the food circulates in the net until they eat it. The net works great for keeping dwarf mbuna away from the fry!

i just bought a couple of these nets because i ran out of space in grow out tanks. i did not expect them to be bulletproof (after all they are a few pieces of plastic wrapped in some mesh) i have a few big fish in my tank (3 red empresses, 5 venustus, 2 fronts) and i never expected this net to hold them back. the first 3 days i had the fry in there all the fish were running into the net and biting the mesh, everything you could imagine to get to those fry. i thought for sure they would break it and get their treat, but the basket stood up to it and after a while the fish realized they couldnt get through it and they just gave up. now they act like its not even there and the fry are growing and doing very well

(oh ya and btw no bubbles got into my breeder basket (probably because i dont even have an air pump)and all my fish are alive...all bubbles do is agitate the surface to encourage oxygen transfer

and mine also circulated water very well...and i have yet to have a problem with dirt build up

It is what it is. Aggressive fish can suck the fry through the net. I was raising Blue-eyed cichlids; the parents were very protective and rarely would eat healthy fry. I moved the fry into the net to protect them from others in the tank (territorial firemouth pair + BIG, HUNGRY OSCAR, medium sized Osphronemus Gourami, medium sized frontosa), and now the parents couldn't recognize them and became the worst offenders! My solution was to cut and fit part of a ziploc bag around the bottom inch of the net, providing armor for the weak swimmers until they could swim on their own and stay away from the sides. I didn't have the circulation problems of other reviewers, but I had a highly filtered tank with 70% water changes every week, so I can't really talk here. I also didn't have trouble with the net "floating" like the other reviewer. I attached the top of the net to the top of the aquarium so it was not movable.

My understanding also is that "bubbles" is not how to get oxygen into aquarium water. The amount of oxygen in the water depends on (1) the surface area of your tank compared to the depth of your tank and (2) the surface agitation of the tank water from the filters. I suspect this reviewer had other problems than "bubbles won't go in net." It worked well for me, I raised many batches of Blue-eyes this way.

had fry in it, they all died because there was no oxygen in the water INSIDE the net. All the air bubbles in the tank would get caught under the bag and make it float. NO circulation at all. Would not recommend isolation net, I would try one of the isolation containers. didn't use it long cuase it killed my fish. 2 batches of auratus fry.

Haven't tried the Fritz brand yet. But for net breeders, I like this one. Clips can break off over time, but less than other Penn plax or Hagen bands,

Folks, this is a net on a frame. It is not a suit of armor. Do not expect a net breeder to protect fry from agressive cichlids! This is a net on a frame that hangs in the tank. It is sufficiently strong to protect the fry from adult angels, six-inch discus and dwarf cichlids. When my discus get bigger, I'll report if it can withstand them as well.

The big advantage is you can isolate fry without removing them from the water conditions and big filter of your main tank. I have used these to raise hundreds of fry until they grow big enough to require their own tank. I have two batches of ancistrus fry in two of these in my big tank right now (darn ancistrus popped two batches 4 weeks apart).

Regarding the net slipping off the frame, the string can be tightened or loosened like the pull strings on a sweat shirt hood. If it slips off, tie it tighter. I tie it just barely tight enough to stay on, so as not to pull the net too tightly on the frame.

Half decent for smaller tanks with no large aggros. Net falls off of frame all of the time, can't see anything inside the net. Very easy to set up but not recommended.

I got this to isolate the 3 WCMM fry i have. It is good, ecept that it catches alot of debree around the tank. It also gets alot of waterflow.. much more than the little breeder tanks.

This is a good net IF!!! You do not keep it in your main tank with cichlids. The net offers no protection from your fish and they kill they from below or the sides if you have mbuna. At best I use them in fry tanks and I like the lustar much better. Viewing is not good with this net style.

So I bought this breeder net so that i could seperate my new found fry from the rest of the tank. That mission was easily accomplished. The fish and the fry were seperated from each other. Then along comes my Christmas Fulu and starts eyeing the fry, who are all hiding in the corners. A few smashes later and I had half my fry crushed, and a few more and all the rest were casualties too...This net works beautifully as a seperator for fish that are bigger, but I would not recommend putting fry in here because the netting doesn't really provide protection, just seperation. If you are in a situaton like me, then I highly recommend getting something with a clear plastic bottom and sides.

I have two of these and I am pretty happy with them. You can take them apart again to clean the material really well. Adjustable tabs make it easy to switch between different tanks. Does not offer protection for fry from larger fish.