I love my tanks. You should see all the progression pics of this tank as it has changed over the years from mostly softies with tons of GSP, to lots of huge digitatas and montipora caps that literally grew too big and out of the water, to the mixed soft,LPS,SPS that it is now. The algae is'nt red slime...it came from the refugium and is called asparagopsis taxiformis. I have it about beat finally in the fuge, but am still battling what made it's way into the DT. I live in Orlando.