So I've been reading around, and apparently many people have tried acclimating guppies over the span of a few days, and not only have they had success keeping them, but they even breed in the saltwater! Imagine those ultra colorful cobra guppies swimming between the branches of your SPS colonies . This made me think about their compatibility with other marine fish. For those of you who use feeder guppies, which fish do and don't eat them. I'd love to keep guppies in a reef in the future as freshwater bores me but I've always loved these fish. In fact, people who keep these fish in reefs say their fry feed their corals. If you keep seahorses, these fish can supply them with a much better food source than brine shrimp (since these fish just breed and breed).
Maybe this isn't that big and everyone knows about this, but I know I didn't, and it really shocked me! I've posted some pictures of these fish in saltwater tanks as I don't make my claims without backing them up. I would link the threads but they're on other forums. I do however have a wikipedia article on guppies, and have quoted a sentence from it with the included source.
https://en.wikipedia.org/wiki/Guppy#cite_ref-7
"They can withstand levels of salinity up to 150% that of normal seawater"
And a quote from the original source "After a 30 day stay in 150% sea water (58.5%), fish were readapted to fresh water over a 5 h period. The results indicate that they were well able to tolerate the abrupt change from 100 or 150% sea water to fresh water. Females that stayed in 150% sea water (58.5%) for 30 days had embryos in their gonads"
Chervinski, J. (April 1984). "Salinity tolerance of the guppy, Poecilia Reticulata Peters". Journal of Fish Biology
Guppy fry happily living in its (completely unnatural) saltwater habitat:
I hope I didn't just waste my time and everyone just knew about this
Maybe this isn't that big and everyone knows about this, but I know I didn't, and it really shocked me! I've posted some pictures of these fish in saltwater tanks as I don't make my claims without backing them up. I would link the threads but they're on other forums. I do however have a wikipedia article on guppies, and have quoted a sentence from it with the included source.
https://en.wikipedia.org/wiki/Guppy#cite_ref-7
"They can withstand levels of salinity up to 150% that of normal seawater"
And a quote from the original source "After a 30 day stay in 150% sea water (58.5%), fish were readapted to fresh water over a 5 h period. The results indicate that they were well able to tolerate the abrupt change from 100 or 150% sea water to fresh water. Females that stayed in 150% sea water (58.5%) for 30 days had embryos in their gonads"
Chervinski, J. (April 1984). "Salinity tolerance of the guppy, Poecilia Reticulata Peters". Journal of Fish Biology
Guppy fry happily living in its (completely unnatural) saltwater habitat:
I hope I didn't just waste my time and everyone just knew about this