We have a young GSP named Floyd in a 27 gallon brackish tank. The tank is over a month old, cycled and the water is testing within acceptable limits. (0 ammonia, 0 nitrite, less than 10 nitrate). We're doing 25% water changes ever 4 days or so. We've had Floyd for about 2 weeks. He adapted to his home quickly and was eating right away. We have a good crop of snails in a breeder and started a routine of feeding him 2 eye-sized snails a day. We mixed in a little clam and raw shrimp. Everything was great, he was very interested in his tank and would come up to greet us. He was even eating his snails out of a small net.
Then we re-arranged his tank a little bit during a water change. We added a ceramic dinosaur that periodically blows large bubbles and removed a bubble wall. We also moved a few objects around. He has been shy ever since. He will still eat, but almost never comes to the front of the tank unless we are not around. He is skittish and surfs up and down the rear of the tank most of the time. I need to drop the food in and let him find it and his appetite is not nearly as good. We had a few extra kids in our house recently too which caused increased activity around his tank too. He still looks healthy, white belly and happy bright green spot on his head.
I'm hoping it will just take some time to return to normal. Has anyone had a similar experience? I think we should just leave it alone, but should we put his bubble wall back in? Will he return to the trusting happy little guy we knew? He's been this way for a week or so.