plantbrain
Expert
- Joined
- 2 Aug 2007
- Messages
- 1,938
Remember that nature is not necessarily the optima for breeding and health for fish.
Same is true for agriculture and livestock.
The issue for many such question is that most of the livestock we get are FARMED raised, much like domesticated farm animals. They are well adapted to the local water conditions, they have to be, other wise ecological changes in nature would wipe them out easily.
As long as these changes take place over time or generations, then there is little issue, Since many fish are bred multiple times over decades and sold into the hobby, I think they can be well adapted to a wide range.
Say the fish have been bred at a TDS of 500, KH of 100 ppm and a GH of 100 ppm. This has been done 2-3 generations. The old book information is essentially useless at that point, which is about 90% of the fish you might buy.
Specific wild species which tend to be only very specialized aquarist..........perhaps not..........but now you have backed yourself into a very small corner of hobbyists and conditions, maybe 1% or less of the hobbyist are in this group, likely less.
While stat's can be arbitrary, 1% or less is good bet
Humics can off set many so called toxic effects for livestock, shrimp and fish both. So there are a few factors. Adding salt has been the oldest form of medication for fish. It obviously changes the TDS.
Same is true for agriculture and livestock.
The issue for many such question is that most of the livestock we get are FARMED raised, much like domesticated farm animals. They are well adapted to the local water conditions, they have to be, other wise ecological changes in nature would wipe them out easily.
As long as these changes take place over time or generations, then there is little issue, Since many fish are bred multiple times over decades and sold into the hobby, I think they can be well adapted to a wide range.
Say the fish have been bred at a TDS of 500, KH of 100 ppm and a GH of 100 ppm. This has been done 2-3 generations. The old book information is essentially useless at that point, which is about 90% of the fish you might buy.
Specific wild species which tend to be only very specialized aquarist..........perhaps not..........but now you have backed yourself into a very small corner of hobbyists and conditions, maybe 1% or less of the hobbyist are in this group, likely less.
While stat's can be arbitrary, 1% or less is good bet
Humics can off set many so called toxic effects for livestock, shrimp and fish both. So there are a few factors. Adding salt has been the oldest form of medication for fish. It obviously changes the TDS.
