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No, the purple thing you see in the picture is a little GSP frag I had, I’m almost convinced that the “worms” around it killed it, because shortly after I took those pictures (2 weeks ago) the GSP stopped opening up until today. I’ll try to take a better picture.Likely a sponge. Are your lights making it purple?
what about these ones that looks like worms?If it's the little white puffs you're talking about, Pineapple sponges. Technically harmless filter feeder. But if you don't like them you can remove them.
Those are sponges too, though a different kind than the pineapple sponges. Based on the growth, they seem to be invasive (not necessarily harmful, but they could be).what about these ones that looks like worms?
if you can do this is a bowl of saltwater out of the tank (I don't recommend adding the water to the tank after) and rinse with clean saltwater (not from the bowl) afterwards, that would be even better.
The best way I've heard to control sponge growth at this point is to use a steel straw to scrape and siphon out the sponge you want to remove. Sometimes you can create bad conditions for them and kill them off that way, but that's typically much harder and not always effective.
Some other sponge removal methods:
Other suggestions include exposing the sponge to air (obviously not a guaranteed solution, and definitely not viable for this situation); hydrogen peroxide dipping the sponge (again, not viable here); injecting the sponge with hydrogen peroxide, vinegar, boiling water, or air; microbubbles in the display; and a few more. Predation is not usually a good solution for this issue
Basically, if the sponges have enough food and enough trace elements (which for most sponges includes silicates) to meet their needs, then you’ll see their populations booming.
If you can figure out what’s allowing them to thrive in your tank, then you can deal with that root cause and get rid of them.
Amazing information brother, thanks a lot!Those are sponges too, though a different kind than the pineapple sponges. Based on the growth, they seem to be invasive (not necessarily harmful, but they could be).
As a general rule of thumb with sponges, if they’re not growing over and smothering corals, they’re most likely harmless.
With invasive ones like this, they’re typically still harmless, but some of them can end up smothering corals, so I usually suggest getting rid of them too. For removal of the sponges: