yes, ditto on the vitamins. I've found that on level 1, 3/4 of your fish will die at age 5....OR live forever with multiple infusions of vitamins and/or growth serum. The only difference with level 2 is that these 3/4 of all species which died at age 5 will live to 19.99 years old, so usually one dose of vitamins will show you what they look like and all 3 doses will maybe let you breed them. But... usually if you don't have enough money to do the research, you don't have money for indefinite amounts of vities, so best to just breed commons and save your $ for researching environment.