Hi,
currently have a 180l planted set up which has been running now for 8 months or so.
I have pressurised c02, lime green dc, fish on the edge of being very unhappy towards the end of c02 injection. C02 injection period is 3hrs pre lights on and 2.5 hrs pre light off. Ive been tweaking this to try and get it right and am now running an inline system and distribution seems good. Im dosing 5ml flourish excell daily as a c02 boost also.
Substrate is Aquasoil amazonia with powersand special m, and currently dosing 15ml daily TPN+ and 2.5ml daily Easy Life K (potassium). At water change i mix 15ml sera Mg, Ca and K mineral salts with the changed water to provide for any Mg/Ca deficiencies.
Fluval G6 filtration with additional koralia nano 900 lph powerhead for extra circulation (1900lph turnover). Temp. 77f.
Lighting is 2 x 39w ho T5 with reflector positioned approx. 8cm above water surface, with glass drip covers between. 8 hr photoperiod.
Water changes 40% every 6 days.
My issue is that some species of plants are simply not thriving, they are in a stalemate situation, surviving but not growing. Namely, staurogyne repens, ludwigia arcuata, hydrocotle sp. Japan and taxiphllum barbieri (moss). Some of these species are supposed to be weeds, but its just not working out for me. Im having reasonable success with eleocharis species, hygrophilia species, java fern species and to a degree cryptocoryne species... but thats another story!
I dont think anything im growing is particularly demanding and i really want to get things just right before moving on to some more demanding species.
It seems like a c02 issue, but im maxing this out and cant do any more. The only thing i can think is to raise my lighting a little higher to reduce intensity and the subsequent demand for c02 in hope that the plants will grow stronger. I didnt think that 2x 39w t5 would be too much light though? Is this a viable reason behind my issues or is it unlikely?
What is going on?
Any help or ideas would be appreciated.
Thanks,
Ady.
currently have a 180l planted set up which has been running now for 8 months or so.
I have pressurised c02, lime green dc, fish on the edge of being very unhappy towards the end of c02 injection. C02 injection period is 3hrs pre lights on and 2.5 hrs pre light off. Ive been tweaking this to try and get it right and am now running an inline system and distribution seems good. Im dosing 5ml flourish excell daily as a c02 boost also.
Substrate is Aquasoil amazonia with powersand special m, and currently dosing 15ml daily TPN+ and 2.5ml daily Easy Life K (potassium). At water change i mix 15ml sera Mg, Ca and K mineral salts with the changed water to provide for any Mg/Ca deficiencies.
Fluval G6 filtration with additional koralia nano 900 lph powerhead for extra circulation (1900lph turnover). Temp. 77f.
Lighting is 2 x 39w ho T5 with reflector positioned approx. 8cm above water surface, with glass drip covers between. 8 hr photoperiod.
Water changes 40% every 6 days.
My issue is that some species of plants are simply not thriving, they are in a stalemate situation, surviving but not growing. Namely, staurogyne repens, ludwigia arcuata, hydrocotle sp. Japan and taxiphllum barbieri (moss). Some of these species are supposed to be weeds, but its just not working out for me. Im having reasonable success with eleocharis species, hygrophilia species, java fern species and to a degree cryptocoryne species... but thats another story!
I dont think anything im growing is particularly demanding and i really want to get things just right before moving on to some more demanding species.
It seems like a c02 issue, but im maxing this out and cant do any more. The only thing i can think is to raise my lighting a little higher to reduce intensity and the subsequent demand for c02 in hope that the plants will grow stronger. I didnt think that 2x 39w t5 would be too much light though? Is this a viable reason behind my issues or is it unlikely?
What is going on?
Any help or ideas would be appreciated.
Thanks,
Ady.