Kirsten. Welcome.
Im a straight shooter. Going to corals is going to up the output of money. Are you prepared to spend hundreds and hundreds if not thousands and thousnads?
I too started with a 75g tank. After lighting alone I was in $1500 bc I wanted quality over mass produced
Amazon/Ebay Chinese "black box" lights. Even those, for a good quality one, runs about $200 each and I would hang 3 of them over a 75g
I started slow on my 75g going to corals. $20,000 later (prob more) I'm into a 180g with a 100g sump in the basement.
Doing reef and corals...costs are a run away train.
High initial investment.
High monthly maintance.
Then you'll prob have about $1000 worth of corals you'll completely lose due to your own learning curve.
By 2022, I could see you easily in the $2,000 to $5,000 range with corals.
Yeah yeah yeah... there WILL be post below me saying they have a 75g reef that in total cost them $1200 for everything. But thats like 5% of what I've seen. 95% of ppl in your 75g will prob spend around $3k, $4k, $5k or more.
Did i scare you?
.