i would have paid attention to my researched and bought all the equipment that i need first. not just get by with what i had that i knew was under sized. added all the live rock at once instead of buying a rock or to as i could afford it. added a PO4 reactor at startup instead of battling algae for 2 years. added a refuge at startup. what am i saying, i learned so much from my mistakes and accomplishments that next time when I'm ready to upgrade again i will know what I'm doing. I think that this Hobie is so challenging for me thats what keeps me interested. scared of the day when everything is perfect and all i have to do is sit back and watch. Oh yea, i wish i would have found RC earlier in life. That would have helped also.