This was a short 26 minute anime movie released on August 10, 1986 based off the book by Leo Lionni. The movie has never been released on any home media. This is the single EP record for the theme songs.
K07S-3076 Released in 1986
Good Luck Swimmy (がんばれスイミー)
Swimmy’s Lullaby ~Marine Snow~ (スイミーの子守唄 ～マリンスノー～)