Adding Rotifers and Pods to tank without slowly raising salinity?

[Tetra84]

Hey Everyone,

I am starting to experiment with raising live food (rotifers and pods) and adding them to my tank bi-weekly. Everything I read says the rotifers and pods do best in 1.019. I keep my tank at 1.026. Is there a good way to add the live food without slowly raising the tanks SG?

 

[disc1]

Hey Everyone,

I am starting to experiment with raising live food (rotifers and pods) and adding them to my tank bi-weekly. Everything I read says the rotifers and pods do best in 1.019. I keep my tank at 1.026. Is there a good way to add the live food without slowly raising the tanks SG?

Unless you are adding them by the gallon I don't think it is going to be enough to make any noticeable difference.

 

[LLUSA]

I wouldn't add culture water to your tank. Get a micron sleeve and collect the rotifers and pods. Then you can target feed them where you want them to go.

 

[Tetra84]

Yeah I was planning on filtering them out and adding them to a small cup with just a little fresh saltwater and just putting that in the tank. I guess I can run the skimmer a little wetter if I need to..

Thanks for the feedback

 

[Moort82]

Why not just sieve them and use existing tank water or take out the same amount you put in. Its the way i have always done it but my system isn't very big so is more liable to swings.

 

[victor_c3]

Just doing a little bit of simple math, if you remove 99.31774 ml of your main tank water (1.026 salinity) and replace it with 100 ml of your rotifer culture (1.019), you'll end up with the same amount of salt in your system.

the amount of salinity change you inflict on your system would be very very very negligible. You would probably lose more "salinity" as a result of salt creep than from 1:1 swaps of rotifer culture water.

To look at it another way, if you were to have a 100 liter system (or a 37.8 gallon total volume) and you were to swap out 1 liter of 1.026 water with 1 liter of 1.019, the overall salinity of your system would be impacted reduced by .006822%. You would have to do daily swaps of 1 liter of 1.019 water for 14 days to get your salinity down to 1.025 or about 33 days to get down to 1.024.

 

[victor_c3]

duplicate post, sorry.