Hey guys. I have a 6 in. Stonefish (Batrachus trispinosus) that started to reject the frozen-thawed catfish I have been feeding it. I switched to frozen perch recently to see if it just wanted a change in diet but it still won't take the food. It hasn't eaten in about a month. I had it on frozen thawed since I got it which was about 4 months ago and it hasn't had a problem before. Should I try to give him live? I'm not sure what feeders I could use with brackish water. By the way the aquarium has 1.5 tbs. salt per gallon, a pH of 8.0, and a temperature of 80°F. Thank you for your help.