Couldn't have put it better.I would say 5-6 max per bag. Don't feed 2 days before you ship to cut down waste.
It sounds like you shipment used the standard plastic bag. I'm taking about breather bags.I have received 2 shippements of fish recently. My farlowella's came 2 in a bag they were about 4-5 inches long. My dime size angels came 10 in a bag. Both orders had multiple bags and all were double bagged. Bags where about 1/2 full with water and then with air. The box was a standard USPS prioirity box, about 8x12x12. It was lined with styrofoam about 1 inch thick. There was newpaper and bubble rap to keep the bags from moving.
I have never shipped, but both those shipments arrived in great condition with no losses. They shipped 2-3 days.
Remember when PH drops below 7, the ammonia bonds becoming ammonium, I beleive, and is not toxic to the fish. This is good during shipping. During accumation though, when the ph rises with drip or mixing water, it becomes very toxic.
+1I would say 5-6 max per bag. Don't feed 2 days before you ship to cut down waste.
+2 the poop factor is what limits you as far as fish per bag. I just received 8 Cory sterbai and they only traveled about 150 miles. They were packed 4 per bag. It's not worth skimping on shipping costs to risk the fish+1
Sent from my DROIDX using Tapatalk 2
Does TDS really matter that much for fish?None. These bags are too small for fish. I ship snails in them. I use 11.5 x 8 inch bags for fish and I would not put more than 10 1" fish in a bag. Also use fresh declorinated water, never tank water and check to match the TDS of your tank water to the water you will use in the bag. If you use bag buddies (as a purigen) or the likes it can raise the TDS by so much it becomes lethal. I usually mix some fresh water with a tiny amount of a bag buddy tablet and then check the TDS until it is close to my tank water before I add the fish.
Should I use half tank water and half dechlorinated water? since during a water changes over 60%, I don't see any effects on the fish.TDS does matter. Bag buddies change it drastically. I have never used purigen, so I am not sure if it acts the same way.
I would say 10 harlequins will go well in a 7.5 by 12 bag.
Don't know what bag buddies are but purigen is indeed some good stuff.According to Seacham is does not affect the TDS.
http://www.aquaticplantcentral.com/forumapc/seachem/46084-purigen-tds.html
I thought purigen is similar to bag buddies since they also remove ammonia and the likes but purigen appears to be an entirely different product. I might have to invest in getting some.
I've been shipping with tank water for almost two decades. Fish. Shrimp. Snails.Never use tank water, not even a small amount. Always use fresh dechlorinated water.