Howdy - here we are a few days before a move into a D-D 900 Tank 4 months after establishing the one below.
In the 4 months I went through the diatom, algae, cyano, slime situations, removed a live sand bed which was the cause of almost all the problems, replaced all rock with live rock, added a skimmer, removed the wave maker and went overboard on lights and flow.
Only 1 alveopora lost to brown slime, and a few Zoas went bye-bye.
Made the mistake of adding two Aldabras as first fish, then traded them away to add a Blenny, Lareto, Mandarin, and a fire fish. Lost a few snails and one crab.
Fighting with two hitchhiker gorilla crabs which are eating the rock and not corals. But they are not a tragedy. Amazingly only a week of aptasia, which went bye-bye with some peppermint shrimp, that went bye-bye shortly thereafter.
Moving the below into a 225L show tank (+65L sump), a DD Reef Pro 900 .
My thoughts on the Fluval (32g/123L):
1. the curved front sucks - the bottom half of the bent front builds up with detritus and algae daily. Maybe a bent front is better for freshwater tanks.
2. getting the right flow for more than one coral is impossible.
3. before setting up, I silicon sealed the internal Sump. The Sump worked rather well for me, but is impossible to clean without getting aggravated, no amount of good wine has helped this process.
4. I sent the tank up too low. We are all tall in the house.
5. Thin glass makes hanging lights unrealistic. I mcgyvered a light stand.