Thanks Rebel! I use a koralia 1. Horses have been great, up until TODAY : ( Lancelot has i think swim bladdar disease or issue. She was doing great yesterday, but today she can't seem to swim right at all, and I can't find anything I can do. There's no outward appearance of disease or injury. I have her in the breeding net with some chaeto. Zoot (the other horse) is doing well though. I've been feeding the horses in a breeding net so the clown doesn't steal all their food.