Fish Deck Fixes please?

Maybe you should change umiiruka with legendary ocean or umi because even umiiruka increase your monsters ATK= 500, it will decrease your monsters DEF = 400, and maybe if your opponents monsters ATK is bigger than yours and you already activate umiruka, your monsters will destroy even you change them to DEF pisitions because umiiruka already reduce their DEF by 400, better for you if you use umi or legendary ocean. legendary ocean can make the tribute of your lv 8 fishes are only one and umi can reduce any pyro or machine monsters ATK and DEF by 200 points. for the traps maybe better for you if you use sakuretsu armor, bottomles trap hole, adhesion trap hole, etc. my deck is same as you, but it is water deck, there are fish, thunder, sea serpent etc monsters ( just in the play station)