So im planning on my first reef tank, im on a budget of like maybe 2k-3k MYR which should be around 400-500 USD, i got a fluval flex 15 running as a fresh tank and i wanted yall's opinion. Should i get a 40g breeder, buy the equipment needed as in filters (HOB . Skimmer ) , lights, ATO, heater, etc, OR should i just convert my fluval flex right now. All i need is lights, heater, maybe some type of small filter to add and a heater, i already got a powerhead. Pls let me know if u have any suggestions on equipment for my budget and any tips. Im still stressing on the stuff i need at the side as in RODI, the kits, sand and live rock, the salt so im kind of intimated at the moment. Thanks!