Anyone has experience keeping marine molly

[rastaangel]

I used mollys to cycle my tank the first time around. I went to the pet store and bought 30 random mollys and just dumped them into my tank. They lived threw the cycle and multiplied rapidly, after 2 months there were gobs of baby mollies all over!!! Then I introduced my pair of volitans and they cleared them out for the most part. To this day, I have had my tank break, started over, then had it crash from being poisoned, started over again, and what has lived threw all it? 3 sailfin mollies...