[German Blue Ram]

This is pretty common. Sometimes, the stress can be a lot for the female. but males do not go at them as vigorously as (for example) male bettas go after females. Sometimes lowering the light can be calming. We use black cupboard liner over the top to mute / filter light in order to both moderate algae growth and to calm stressed fish. A water change, if appropriate, can also help to "reset" the pair. Also feeding live foods - daphnia, or baby brine shrimp - can go a long way towards calming the pair down. 

[Cichlid breeding...HELP]

Assuming that you are referring to African Cichlids, once your cichlids mature, providing you have males and females and also providing that they are "mbunas" in general, you will likely get spawning and holding. As others have said, hybridization is rather frowned upon in the hobby. 

Once females spawn, they hold the eggs for 18-24 days. Unless they swallow or spit prematurely, the eggs hatching their mouth, and will be released by the female. In a community tank, the vast majority of fry are eaten. A few of the smaller and more agile ones may survive. We find that Auratus tend to be survivors, but others are scarfed up. 

Some photos are attached . . . (1) Our African Mbuna community tank set up (2) A female currently holding compared to other female not holding (3) Closeup of female holding (4) Male Auratus

 

[Krib fry]

Beautiful photos! Kribs are simply the best parents. One challenge we've had is getting the fry to grow quickly. They seem to take their good old time. It took us 6-9 months before we could sex the fry reliably. It's easy to get in over your head with ribs (kind of like angelfish). If your adult parents keep at it, they'll sometimes hatch 100+ fry at a time. 

[A Way to Successfully Breed Rams]

Thanks very much! When our fish club was meeting before COVID shut downs, we could auction a pair of these off for between $30-40. Selling to our LFS, we only can get about $5 a pair. Haven't ventured much into selling online. These started with a cross between an electric blue male and a gold female. This spawn is from a selected pair from that first batch. That's why some of them have got the blue-flame fins. 

[Methalyne blue]

Inexperienced breeder here... but did just find success using hydrogen peroxide in very small quantities instead of M.blue for a batch of angel fry. If you’re interested, you can see how we did it here:

 

[New Pea puffers]

These little guys are awesome fish! Mark's Aquatics has a nice video series on breeding them if you're interested. They do like snails. Also they like mosquito larva. We found that ours turned their noses up against dry fish food . . . so they can be a bit picky, definitely preferring live foods. Sounds like you're an awesome fish keeper!

Here's two photos showing differentiation between male and female. In general, males are yellower, and females tend to have more contrast between the dark spots and light body coloration. There are little shiny marks on the male cheeks that the female doesn't have, as well as a stripe down the belly that is more defined on the male than the female. 

 

 

[Strange eggs.]

If you’re interested in trying to hatch Cory eggs like this, here are two short videos you may find helpful. One important note, however... many times, the eggs laid are not fertile. If they stay white and build up fungus they are infertile. Good luck! Let us know how you make out.

 

 

[Corydora Breeding Difficulties]

We had a terrible time trying to spawn a group of Corydoras Aeneus (Bronze Corys) until very recently. If you've ever seen any eggs at all, then they are likely being eaten by the swordtails or the tetras. A powerhead may help, as they do like flow in the tank. Getting good food through them is probably more important than cold water changes. Your feeding variety looks great! Perhaps try changing water when barometric pressure drops in your area. Also . . . this is a little crazy . . . timing water changes to a week when there's a full moon sometimes helps. Ours spawned right after we added a bunch of crypt parva. We also added oak leaf litter, some alder cones, and a few catapa leaves. When they're comfortable, they do spawn!

[A Way to Successfully Breed Rams]

Thought someone working on breeding might be interested in seeing a method for spawning and raising Golden Opal Rams (Mikrogeophagus Ramirezi). We've tried many times to allow our adult Rams to raise their own fry without pulling eggs, but every time ended unsuccessfully. This way definitely can work, even if it's not the most natural. Hope someone finds it helpful! 

 

[Fish Folk sayin' hi]

Hello! Young aquarist here. Been plugging away at BAP for a couple years with my fish club PVAS (Potomac Valley Aquarium Society). Also have been sharing videos about various fish-keeping projects on my small YouTube channel (Fish Folk). My Dad and I built a little fish room in the basement . . . tank multiplication syndrome is real! Anyway, running about 20 tanks now, and always working on breeding projects. Here's a few photos of various fish we enjoy keeping.