Not me, I put stuff in my tanks almost instantly.
I was going to post this the other day in the things you did that people say not too, but got busy so I'll post it here.
I put a Rainbow BTA in my 29gallon after only 2 weeks. It's by far my favorite of anything I've put in any tank. I absolutely adore it.
Quick answers to obvious questions:
Yes it is still alive and doing great, it's about 12 inches spread out during the day.
Yes I've had it for more than 6 months.
No, I've never had any troubles at all keeping it. It stayed on the bottom of the tank for about a day after I got it. It then moved to the rocks, found an awesome place right in the middle of the tank and hasn't moved since. Not surprised where it stayed, it was somewhat planned(or at least I hoped). It's foot is in a hole in a cave which gives it a place to hide from flow when it wants, or extend out to get good flow during the day.
It hosts 2 clownfish who were juvies at the time, but 1 has already became a female at this point.
No splits yet, but it split a few weeks before I bought it.
No, the tank has never had any real algae in it, other than a little dust on the tank and some hair algae on the powerheads.
No cyano or anything like that.
No clue what the water params are, I only test salinity.
Never used anything like vibrant to prevent algae or anything to reduce nitrate/phosphate.
However I did use MicroBacter7 to seed the tanks bacteria. Do people really still cycle their tanks?
I feed it about once every 2 weeks, no schedule just whenever I think about it. But pellets often drop in it while feeding the fish.
Setup: I have a HOB bubble magnus skimmer and then a HOB with a UV light in it and some carbon. I put a scrubber in there about 2 months ago, but isn't really producing algae yet. 2 powerheads on each end of the tank for flow. I forget what they are, other than being very cheap, like $20 for the pair. 2 Kessil A160WE for lighting.
Why I did it: Timing. While I had planned the entire time to have a BTA, I had no plans for a rainbow. I was just going to get a cheap green one etc. I had tried a BTA before in a larger established tank and it didn't turn out well. But I went to my favorite fish store as I was driving by one day, and saw the split mentioned above. It was a good bit smaller, so I asked how much it was thinking I might get a good deal. Unfortunately, the split was already sold, but the owner said he would give me the other for $100. So I impulse bought it. I also had another established tank I could put it in if needed, and/or the fish guy would let me keep it there as long as I needed if it seemed to have trouble.
Why I think it worked where most fail: Low bio load. I didn't put it in a huge tank that has a bunch of fish, coral and other things where the bio load is large. The tank consists of the RBTA, the 2 clownfish, a leather coral and some zoa frags from my other tank where they had already spread over the other rocks. The entire setup was made for it and nothing else, so nothing really changing the water chemistry.
Geez didn't mean to ramble on. But I sure do love that thing.