Holes on my Eusteralis stellata...

[AhLong]

.

.
Anyone can tell mi why there r holes on my Eusteralis stellata ???
there ain't any snails in my tank..
wht the possible reason that my plants start to have holes & turn brown?

[geoffrey]

Long,

That is a very nice stand of stellata.

It's hard to tell what can be wrong with so little information provided. Do you fertilise? Could be a deficiency of a particular nutrient. Why don't you tell us more?

[AhLong]

btw bro geoffrey,that stand of stellata is not mine...



Tank setup
----------------
Age of tank : around 2 - 3 months
Dimesions of tank (LxWxH) : 2.5'x1'x1.5'
Volume of water : 85% full

Type of Filter (overhead/internal/canister) : eheim 2213

Type of lighting (FL/PL/MH) : 4 x 36w PL
Lighting Intensity :
No. of hours of lighting : 7 hours daily

Type of CO2 (DIY/Liquid/Tank) : cylinder
CO2 injection rate (bps) : 2 bps

Substrate used : river sand
Thickness of base fert : 1 cm Dennerle base fert...
Thickness of gravel : 2 cm Dennerle gravel...

Type of liquid fertilizers used : Dennerle V30
Other types of fertilizer used : Root monsters
Frequency of fertilization : 1 capfull in 2 weeks..

Temperature of tank : day 27 C and night 26 C

Other equipment : surface skimmer



Chemical Properties
--------------------------
Carbonate Hardness (KH):
Total Hardness (gH):
pH : 7
NH4 (ppm):
NO2 (ppm):
NO3 (ppm):
PO4 (ppm):
Fe (ppm):



Bioload
----------

Flora in tank : Erect Moss,Rotala wallichii,Eusteralis stellata,four-leaf clover,Hemianthus callitrichoides 'Cuba',Nymphaea lotus.

Fauna in tank : 50 cardinal tetra, 10 cherry shrimps , 10 malayan Shripms , 2 SAE & one ballon ram..



Description of problem(s):
--------------------------------
what the possible reason that my plants start to have holes & turn brown?

[bclee]

It is likely that your plants may be potassium(K) deficient. You can use K2SO4 to supplement K. Alternatively, if you want to stick to Dennerle range of products, you should consider adding E15.

You might want to look at your CO2 level. For our soft water, pH 7 seems to indicate a lack of CO2. You should check your pH and KH and check the CO2 concentration using the CO2 chart or calculator(search this site, you will find one here).

BC

[ms]

Hi Bclee,
I think I might have the same problem. Where can I buy potassium? or the K2SO4 that you talked about?

Thanks.

MS

[AhLong]

[quote:5da1d57663="bclee"]It is likely that your plants may be potassium(K) deficient. You can use K2SO4 to supplement K. Alternatively, if you want to stick to Dennerle range of products, you should consider adding E15.

You might want to look at your CO2 level. For our soft water, pH 7 seems to indicate a lack of CO2. You should check your pH and KH and check the CO2 concentration using the CO2 chart or calculator(search this site, you will find one here).

BC[/quote:5da1d57663]

yeah thanks bro..
think tonite i go C328 n buy...

[Plantbrain]

Dose more than once every 2 weeks.
Dose every other day.
ES likes NO3 also. Dose that.
PO4 will help also.

pH ranges should be in the 6.4-6.6 ranges for the tap water there in SG.

Regards,
Tom Barr