I live in Toledo, Ohio I was wondering I never had problems with water changes but the last one I did I noticed all my j. regani died out of 6 only 2 dead bodies but no sign of others out of my 125. And my n. Lelupi out of 6 I see 2 or 3 but the rest of the fish look good and no problems. Wondering since thy are worried about alge bloom in Lake Erie do u think so of the chemicals could be hurting my fish?