Do the colors change when a female becomes male?I have 2 swallowtail angels in my 150. Hoping the larger one will turn male some day. So far a very peaceful system at 9 months.
![]()
What do your angels eat?
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Do the colors change when a female becomes male?I have 2 swallowtail angels in my 150. Hoping the larger one will turn male some day. So far a very peaceful system at 9 months.
![]()

The name of the place is “I like it like that”.A friend on RC has been doing Sea Grasses for some years, recently posted that Sea Grasses were more efficient at removing low nutrients from bulk water and would be a better match for low nutrient SPS than macro algae. Any thoughts @Lasse or @Sallstrom
Considering Mark Levin & @Paul B have nitrates > 50ppm, I see little concern with high nitrates.
Considering the culture of vendor induced products to take the place of an informed hobbiest, I say “Houston, we have a problem”.
Patience is a virtue to be embraced. Wisdom is discernment combined with an application of knowledge. For certain there are many methods to operating a reef tank successfully. I choose Laissez Faire and Microbial Overlords.
__________________
As many naturalists and environmentalists have suggested, we should set aside our arrogance,
our desire to conquer and control everything, and walk hand in hand with Mother Nature. -Walter Adey


The ecosystem filter is exactly the sort of aquariums my boss at the lfs set up and those are the type of aquariums that I serviced. They worked well and were relatively maintenance friendly.Place the appropriate amount of MIRACLE MUD®into Chamber #2 of the EcoSystem Aquarium® Filter. Level it to create an evenly distributed, 1-inch thick mud bed when packed down (at least 1 to 1.5 inches of dry Miracle Mud), to ensure adequate denitrification takes place.
The term “mud filter is misleading. Filtration implies that something is removed. Instead of “remove & export”, the micro fauna & fana “in the mud” are the source of the microbial food web that recycle carbon up the food chain.
![]()
Initially, the miracle mud was to replace trace minerals and provide a matrix for denitrification bacteria. Over the next 20 years; the mud depth increased by 1/2”, felt spongy to the touch and was crawling with worms & pods.
Changeover to cryptic refugium included adding live rock on top of mud filter. Eggcrate was used to lift rock above mud layer.
