aquacoen
Member
Great to see the development of your beautiful Swamp!!
Hows the bean animal overflow working for you? I've installed the same. Cant believe how quiet and reliable it is. Genius
Fil
it isn't especially healthy and is getting these brown spots on them
That is lensing where water droplets have got onto the leaves and then acted as lens causing the burn marks. You can see the droplets in some of the other photos.
Hi all,
That is lensing where water droplets have got onto the leaves and then acted as lens causing the burn marks.
cheers Darrel
It might be dripping condensation (from one of the emersed plants or the luminaire)? or fertiliser burn?no splashing or agitation in the tanks with the brown spots
I think it depends on the light source, you don't get it with fluorescent tubes, but you do with a point light source (it was really common with HPS growlights).and the tank with the most splashing water has absolutely no brown spots at all...
Hi all, It might be dripping condensation (from one of the emersed plants or the luminaire)? or fertiliser burn?
Not sure otherwise, but it definitely looks like a burn mark.I think it depends on the light source, you don't get it with fluorescent tubes, but you do with a point light source (it was really common with HPS growlights).
cheers Darrel
I should have put the <"reference"> in for that one.Because Salvinia has a flat leaf, that is hydrophobic, you get spherical water droplets and these are effective lenses.
........ However, we showed that highly refractive spheroid water drops held 'in focus' by hydrophobic wax hairs on leaves of Salvinia natans (floating fern) can indeed cause sunburn because of the extremely high light intensity in the focal regions, and the loss of water cooling as a result of the lack of intimate contact between drops and the leaf tissue.......
Your's look pretty healthy, and they <"definitely hoover up the nutrients">. Salvinia spp. have been used quite widely in phytoremediationthey grow so fast and are good nitrate scrubbers so I will probably only keep them in the wabi and quarantine tank... I need more nutrients in the riparium not less!
cheers Darrel......In summary, S. minima is a better option than S. polyrrhiza for treating high-strength organic wastewater and lagoons should be operated at a maximum initial ammonium–nitrogen concentration of 70 mg l−1.......
I bought 5 adult wild cherry shrimp
Nice update. Like the detail.
I thought cherry shrimp have been bred from a wild population of colourless shrimp?
Sounds like you got yourself some feral cherry shrimp!
Fil
Just use Darrel's duckweed index, you'll always be om the lean side with it if that's what you want.I know I can slowly increase them but I'm looking for a good start...
The TDS is quite high.Tds 321
So gh and ph seems to be dropping over time... the kh has always been low because of the buffering of the aquasoil and safe t sorb... i have been using remineralised RO water set to 6gh with Salty Shrimp gh+
Unsurprisingly that is what I would do.Just use Darrel's duckweed index, you'll always be om the lean side with it if that's what you want.
Hi all, The TDS is quite high.
If you are happy with plant and fish health I'd keep the TDS about that level.
cheers Darrel
Unfortunately it is difficult to find numbers with out some fairly expensive kit.what makes up the other half? I don't know..
It looks fairly healthy. The damage to the older leaves may be lack of a mobile nutrient, but it could also be drip or snail damage.The frogbit is mostly green but doesn't seem 100%... some yellow or faded or brown leaves and some holes...
Why don't you just add more magnesium (Mg) and potassium (K) salts? "Equilibrium" would be an expensive option, and I'm pretty sure you don't need any more calcium (Ca).I have decided to increase the dose of seachem equilibrium... maybe more magnesium and potassium is what my plants need
As the levels of calcium go up you may begin to get problems with iron chelation and magnesium uptake. Iron deficiencies would show first in the younger leaves (smaller and more yellow).if I increase the magnesium with mgso4 the ratio to calcium will be too far off but I don't know if that's important...