I have a Harlequin Rasbora and Cardinal Tetra that appear to be bloated from constipation. I feed them Cobalt Comm. flakes, Frozen Bloodworms and Fluval Bug Bites. I've been feeding the flake food for years with occasional bloodworms as treats, however I've only started feeding the Bug Bites in the past week or 2. I believe these may be the issue so I stopped feeding them. In the meantime, I've fed them mashed up peas in hopes of relieving the blockage. I'm looking to change there diet completely and would love recommendations for high quality foods that contain the necessary ingredients to promote digestion health. Thanks!