Hello everyone, I posted here a while ago, asking for advice with a first reef tank (no, I DO NOT expect you to remember me.) I wanted to try fluval fx filter then, but everyone recommended me things lika fluval flex or biocube (not available in my country, Poland). Now, I'm thinking if there's a way to do a normal construction, with sump, refugium, etc. but on a budget. I might be able to order some things like IceCap k1-100 from USA, via my family, if it's worth it. I'm thinkking about 30-50 gallon display tank and a 30 gallon sump. What would you say?