Maze coral tissue regrowth?

The tissue on this guy started receding so I checked my parameters and my calcium was low. I have since stabilized the system and it has stopped losing tissue but doesnt seem to be regenerating. This has been about two months. Should I leave him alone or is there something I should do to help?

 

the coral dosen't look happy, look under the coral to see if there are worms under it if so remove them and see if it starts expanding also turn it to a 45 degree angle to the lights under mod flow not to hard of flow just enough the coral can feel the wind.

 

I find they recover better, under lower lighting: they are slow growers though, but you should notice regeneration within a month. How long has it been? Also though there is no rule the tissue will regrow in the same area, but it should grow...

 

Re growing in the middle of the coral takes a long time. You will see growth if you keep your tank good and make it happy. You can speed it up jest a little by feeding it.

 

The coral has been stable for 2 months now. No more recession, but no regeneration.

 

I will try feeding it, thanks.

 

Why is feeding always the go to? Everything starts with the water source.

 

The first thing I always check is water params. Those are correct and stable.

 

Corals need protein, amino acids etc for growth. The don't get that, I'm any significant quantities from light. Light mainly just provides carbohydrates from the zooxanthellae. Water quality is also critical of course.

 

We only test a few parameters out of thousands and of the ones we test, really other than ca, alk, ammonia, pH, temperature and salinity, are of questionable importance and/or can't be tested accurately with home test kits. Parameters are a good tool to find water quality problems, but good parameters doesn't mean that there aren't water quality problems. Reality is, you need to learn your system and build intuition. With time, you to notice things like how corals are behaving and algae growth and fish and coral coloration etc... And these can often provide much better insight. When in doubt though, again, water changes are always a safe bet and (when reasonably well matched to the testable parameters of your system) will always do some good IME.