Salt at 1.027 Will Kill Fish??
- Thread starter laxzach
- Start date
shrimpdady
Member
I keep mine around 1.028.
emperor11
Active Member
Originally Posted by alyssia
1.027 will not kill fish. I just read a post the other day from Ophiura that said fish can actually tolerate high salinity better than low salinity.
The SWINGS in S.G. Yes, anything about 1.025 actually CAN kill fish. I know of several people who keep their SG at 1.026 (including myself) but you can only keep hardy fish if you keep it that high. Having a salt level that high forces the fish to work harder at passing the salt through his gills, and can be very stressful. Now, on the flip side, having it that high makes your protein skimmer work better, and your corals/inverts happier. Its a balancing act, really.
1.027 will not kill fish. I just read a post the other day from Ophiura that said fish can actually tolerate high salinity better than low salinity.
The SWINGS in S.G. Yes, anything about 1.025 actually CAN kill fish. I know of several people who keep their SG at 1.026 (including myself) but you can only keep hardy fish if you keep it that high. Having a salt level that high forces the fish to work harder at passing the salt through his gills, and can be very stressful. Now, on the flip side, having it that high makes your protein skimmer work better, and your corals/inverts happier. Its a balancing act, really.
celacanthr
Active Member
Originally Posted by Emperor11
The SWINGS in S.G. Yes, anything about 1.025 actually CAN kill fish. I know of several people who keep their SG at 1.026 (including myself) but you can only keep hardy fish if you keep it that high. Having a salt level that high forces the fish to work harder at passing the salt through his gills, and can be very stressful.
That isn't entirely true. Most bony fish are isotonic with the water they are found in, so lowering or raising the salinity to a level that is different from where they are found naturally causes stress. It all depends on where they were found, but in general saltwater fish are able to regulate the salt in their body in a relatively wide range of salinities.
The SWINGS in S.G. Yes, anything about 1.025 actually CAN kill fish. I know of several people who keep their SG at 1.026 (including myself) but you can only keep hardy fish if you keep it that high. Having a salt level that high forces the fish to work harder at passing the salt through his gills, and can be very stressful.
That isn't entirely true. Most bony fish are isotonic with the water they are found in, so lowering or raising the salinity to a level that is different from where they are found naturally causes stress. It all depends on where they were found, but in general saltwater fish are able to regulate the salt in their body in a relatively wide range of salinities.
celacanthr
Active Member
Tell us as much abotu your tank as possible.
Lighting?
LR?
Size?
Food?
there si the possibility that you just got some bad livestock, but that is just one of the many, many possibilities.
Lighting?
LR?
Size?
Food?
there si the possibility that you just got some bad livestock, but that is just one of the many, many possibilities.
bang guy
Moderator
Originally Posted by Emperor11
The SWINGS in S.G. Yes, anything about 1.025 actually CAN kill fish.
1.026 - 1.028 is normal tropical seawater. This is what the wild tropical fish are living in, this is what they are used to. I see no reason to keep them in anything less than their natural conditions.
Most coldwater fish are living in a S.G. of 1.032 and above.
The SWINGS in S.G. Yes, anything about 1.025 actually CAN kill fish.
1.026 - 1.028 is normal tropical seawater. This is what the wild tropical fish are living in, this is what they are used to. I see no reason to keep them in anything less than their natural conditions.
Most coldwater fish are living in a S.G. of 1.032 and above.