Can you post a pick of the hydroids?
How far have they spread in your tank?
If they only on the gsp, id remove all of it before they...
Just a comment in general. If you want to collect fish, get a good book for fish ID first before...
I use the normal dark one and add enough drops to give the dip a slightly yellow colour
Thats what i use. Most pharmacies sell it for a round R15 for a small bottle.
Looks like a mini carpet anemone
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