Pristella tetras are known to live in hard water. Your LFS should be able to find some! You could also look into Iriatherina werneri, as well as Danio tinwini. Have you considered white cloud mountain minnows as well?
The tiny hard water fish population is limited outside of livebearers unfortunately. If you're looking for a fish species that will eat the babies, and won't be super proliferant, have you considered a single or pair of kribs?
If you want to limit guppy breeding, then consider keeping them relatively colder (76-78 instead of 78+) to delay pregnancy in female guppies (I think an offside is that the offfspring come out larger?), and not feeding excessively, to limit how many fry a female can pop out at a time. Or just...go with a group of all male guppies?
Thank you for the tips. The pristella tetras are beautiful. I forgot about white clouds lol. I will add them to the list. I just hope they like very densely planted tanks if I decide to get them.
The kribs are perfect, so this will be tough because I'm also really considering Desert Pupfish's suggestion with the scarlet badis / endlers.
The reason I don't want to get all males is because I really don't like the colorful man made strains. Too much pop, imo. I know most people like them. I also want the fish to have fun, if you know what I mean
. My group of neons in my current set up breed regualarly but I don't have to worry about fry because the eggs are light sensitive. I also notice that the dynamics of the group is different with single gender vs a mix of both.
Originally Posted by Desert Pupfish
I've got hard water so researched a lot of small hard water fish, and if you're looking for a small colorful fish to predate livebearer fry, Scarlet Badis might be good with Endlers. I don't have any experience with them, but perhaps others can weigh in. Scarlet Badis are about an inch, as are the Endlers, and prefer live food--so a steady supply of Endler fry would be perfect for them.
Given the limited the selection of non-livebearer hard water nano fish, is there a reason you're limiting yourself to what's commonly available at your LFS? You can get nearly anything online these days, and that gives you access to just about anything available. As others have said, there are a lot of small rainbow fish. Or just stick with livebearer males--they're more colorful, and won't breed.
This is great. Thank you. Ok, I think I've made up my mind now. I'm going with the feeder guppies if the lfs has them, if not, then endlers.
I love your suggestion with the scarlet badis and Ichthyogeek's kribs for population control. I'm pretty sure I've seen both at the lfs.
I've never ordered fish off the web because I feel most of the rare fish are very colorful. I prefer natural strains and less colorful fish that sort of blend in with the plants.
I have considered the indian glass fish but a 20g tall I think is too small for a small group.
When speaking of overpopulation in the fish tank, keep in mind how that often works, even in humans. Things seems to be going along and moderately smoothly-----until something like a pandemic comes along to work on smoothing the curve. Fish have war, disaster, and disease outbreaks just like humans do if we don't keep conditions right and the more population there is, the more difficult to keep those conditions right.
So I find it almost required in my tanks to keep the numbers down to a level I can maintain. If I don't nature does it for me! I lean more toward keeping a few of the right fish to not overpopulate the tank versus a tub full of overstressed semi-weak fish who get sick easy!
Going to the local fish shop has both good and bad for it. One is it seems simple but then it also comes with a really high chance of importing disease.
The only known way to avoid having the whole tank sick when adding fish is to quarantine new fish, so that should be part of your advance planning.
Many new fishkeepers have to lose a tank or so before they really accept that idea. Keep a ten ready to pull out when needed?
That's exactly what worries me with a high population tank. I also prefer under stocked tanks. I'm going to try the suggestion above using scarlet badis or kribs. If they can't keep up, I'm going to give the fry to the lfs.
The lfs I'll be getting them from quarantine new arrivals. I have no idea for how long. Once in a while when I go, I'd see a few tanks with a fresh batch of fish with a quarantine, not for sale sticker on the tank.
I do have an extra tank for quarantine that can be quickly set up with water and extra filter from an established tank.
Thanks for the help guys. So when the time comes it will be feeder guppies or endlers with a pair of kribs and scarlet badis.
Was just about to hit the reply button and something came to mind. What happens if I go with a pair of kribs or s. badis and they start breeding?