I was going to ask how long of a drive but I saw your answer. I exited out and when I came back to respond it must have kept it that’s my fault. I have one black lava rock I added to my tank a while ago and one piece of my life rock in there. I also got some bio cube type that is in a bag. That’s good to know, I’ll be conscious of it thanks! It’s just going to be and my dog on the trip so I’ll have the cooler up front to keep an eye on it and avoid it moving too much. Curious how far up I should fill the cooler though, all the way to the top or leave some room? My concern with leaving room is that the water will swash around a bit more than full.Did your question get cut off? Also be careful with what liverock you put in cooler with fish, depending on the rock it can disintegrate into the water with all the moving around during transport. Like for one bucket I thought I was being smart putting purigen blocks in there for bio filter and it completely disintegrated and made the water completely cloudy. Now I only use sponge filters for this. I auctually just moved a bunch of fish this weekend from Tampa to Miami and had them in same setup I described earlier for about 24 hours loading and unloading.