Hello all, i am new to this site and just would like to ask few questions since it seems like there is alot of people on this forum that know alot of info that i might not know. So i recentally set up my 75 gallon for frontosas, yes i know this is a small tank for them but im simply using it as a grow out so i can put them in a 135 that i have not in use. the substrate i use is argonite cichlid sand and have holy rock and big river rocks as well. for filtration i have 2 emporor 400's running. I have the temp set at approx 79 degrees. I purchased my first 3 juvenile fronts and within 3 days 2 of them died. I took my water to the LFS near by and they said everything checked out fine. So just yesterday i purchased 4 more and i woke up today with 1 dead. I simply do not know what going on I feed a mix of brine shrimp blood worms and some flakes. They eat it and spit everything out. im just frusstrated and do not know what to do but i really want to keep these fish any thoughts on what is happening? i just dropped the temp to 74 75 degrees after reading a few threads. please help.