Personally I have always used kalkwasser and have had no problems. I am interested in a statement you made about sps and nitrates. From my understanding and from what I have seen, sps actually do better in a system with a measuable amount of nitrates, usually from excess fish excretment. Their color brightens overall and growth increases rather then in a system that is stripped of excess nutrients.Dosing of calium is not easy, it can be very dangerous for our animals. Too much calium are highly toxic. please take the right dose of calium only if a precise measurement is possible for you.
hma. Have you tryed to simulate the color changes of Florida ricordia in the closed system? Through lowering the duation of lighting and cooler temps? Interesting. Once I convert to all ricordia tank I may try that and see what happens. Though it might be best to leave yuma ricordias out of an experiment like this.
Personally I have always used kalkwasser and have had no problems. I am interested in a statement you made about sps and nitrates. From my understanding and from what I have seen, sps actually do better in a system with a measuable amount of nitrates, usually from excess fish excretment. Their color brightens overall and growth increases rather then in a system that is stripped of excess nutrients.
I think the same way. SPS needs a small quantity nitrate, which of Zooxanthelles to oxygen processed . The nitrate level should never exceed 5. In the ocean nitrate is provable only at very large expenditure, latently however available. Even if our usual measuring instruments do not indicate a nitrate, nevertheless nitrate is in each aquarium available,but not with our measuring detectably. Who holds fish and corals and also feeds therefore, inevitably nitrate has.
BTW - KALKWASSER is NOTthe same as CALIUM. Kalkwasser is Calciumhydroxid it consists of: Calcium (CA), oxygen (O) and hydrogen (H) = Ca(OH)2
and Calciumcarbonat consist of: Calcium (CA), carbon (C) and oxygen (O) = CaCO3
In our aquarium develops = Ca2+ + 2 OH- + 2 CO2 = Ca(HCO3)2 = Calciumhydrogencarbonat
One question people.
Would multi colored rics and yumas be a seasonal coloration as they transition from one color to the other or are some varieties permanently bi or tri colored?
Before I buy a fancy rainbow Ricordia and have it go all green. lol
thank you in advance.
The Ricordeas is fed by me additionally with Phytoplankton from own breed.
In the time between summers and winters the colors of the Ricordeas develop very differently. During this period one finds many so-called multicolored Ricordeas, which unite partially a whole palette of color in itself beside the most different single colors. As above described acting nature leads to the fact that during the entire yearly polyps in most different colors are found. The natural mutation leads to the fact that there are not always directly many polyps of an identical color.
Because I could ascertain up to now still no colour change, apart from the normal to very light colour changes with stronger temperature change in the aquarium with my Ricordias. In the sea you can observe the seasonal colour changes very well.
I would have to agree, at least in the tank why they change. I have noticed high placed lemon ricordias change toward green and lower placed stay pretty much the same (MH), pink and blue darken to more intense hues under higher lighting same with orange. Don't think feeding has alot to do with color much, just growth and mouths produced.hmmm...
Maybe a future experiment? Sure would take a lot of ricorida and tanks to setup proper control and experimental tanks to play with photoperiod, light, temp etc
My immediate guess would be light exposure, maybe a factor of light intensity, and photoperiod causing a change in the pigments to either block excess light or direct more usable light to zooxanthellae. I know similar theories exist with coloration variation in Acropora sp.
I have never even observed Ricordia yuma in the wild so I probably shouldn't even fathom a guess without having seen and experienced the conditions in which they are naturally found.