I would say it depends on how often you do water changes. Plenty of small ones and you could do it indefinitely. It could be annoying doing that but keep your tank happy
I have a 92 gallon corner tank. Skimmerless for two years now. Packed to the gills. Mainly lps and softies. Water changes 15 gallons per month. Have big lps colonies.
Hi there
When you say medium to heavy Stocked Are we talking lots of corals or lots of fish If Fish You would be needing to keep up with the regular Water Changes and keep your feed to a minimum if it's just a few fish and lots of corals Then no worries just keep on Top of Your water changes