Principal Problems of Applicable CELSS Design

In the paper problems which seems to be significant and unavoidable for CELSS practical application are considered: 1) the problem of selection of appropriate CELSS composition, which is highly important for concentrating efforts and finance on the most promising version of CELSS; 2) the problem of comprehensive testing of CELSS and evaluating its reliability which is obligatory necessary for real applications; 3) the problem of reproducing and comparing different experimental data from different CELSS. Possible ways of solving this problems are considered.