I had my 55g high tech tank setup for about 2 years now. But I have restarted several time because of algae/poor plant growth issues. Just restarted about 6 weeks ago. Every time I start fresh, everything is growing fast and healthy for about a month, then I start getting pinholes, twisted leaves and sudden bloom of GSA and BBA. And seeing a lot of discussions on micro toxicity lately I just thought I'd ask if this might look like it?
I always just contributed it to the "CO2 issue. Not enough, poor circulation etc". But I have now tried so many different configurations of extra pumps for flow, adding more Co2 to the point of almost gassing inhabitants. Different methods of diffusion. You name it.
2 Weeks ago I had no algae, now its on the driftwood pretty bad and on some of the plants. Started with twisted new growth on the L.Glandulosa and H.Compact, some twisting of AR mini. Then GSA on driftwood, then GSA on some leaves (mainly H.Pinnatifida ,L.Glandulosa and AR mini). Then Pinholes in Buce and H.Pinnatifida. Now BBA is starting to spread on driftwood and substrate pretty fast. Only a little bit on the Buce and L.Glandulosa so far.
As I said earlier, every restart and the issues start out the same. First GSA slowly creeping up on hardscape after 4-5 weeks, then GSA takes off followed by BBA.
Ludwigia Glandulosa -
Hygrophila Corymbosa "compact"
Alternanthera reineckii 'Mini'
Bucephalandra 'wavy green'
Microsorum pteropus 'Trident'
Utricularia Graminifolia - Changing this out for HC, just too much of a pain to plant and keep planted for me.
ADA Aquasoil Amazonia
Fluval FX6 with Eheim substrat Pro,3-4 years old well established.
Clean it every 2-3 weeks.
Finnex Planted+ 24/7 @ about 18" from substrate
Running it in 24/7 mode.
Used to run 2x54W T5HO with high quality reflectors, but now have the finnex, as I thought I might have to much light and/or not the correct type of light.
No difference after switch, other than plants and algae are growing a tad slower.
EI method with values based on this calculator:
Aquarium Nutrient Calculator
KNO3, KH2PO4, K2SO4 on Mon, Wed and Fri.
Rexolin APN (used CSM+B before with pretty much same results)Tue, Thur and Sat.
Flourish Excel at the recommended 5ml pr
40L every day.
KH = 2.5-3
GH = 4-5
PH before CO2 7.3-7.4
PH after CO2 6.0-6.1
NH4 = 0
NO2 = 0
NO3 = 30-40
PO4 = 1
Bazooka atomic diffuser 65mm
BPS - Too fast to count, but drop checkers in every corner of tank show yellow/very pale green at peak co2.
12lbs Canister with BioPlast Regulator (single stage from the 90s, German Made)
50-60% once a week.
Daily use of a Koralia wavemaker to get mulm from under plants/driftwood etc into the water column and into the filter.
Removing dead or decaying plant matter on WC day.
Suck up any substrate with BBA and discard it, trim the worst hit leaves on WC day.
As of 2 days ago, I did a close to 90% WC and stopped Micro's so far, to see if I too might see improvements as some others have.
But since I have been dosing CSM+B and Rexolin APN in EI amounts for close to 2 years, I'm a little worried that my Aquasoil has become toxic too. If this is indeed the case.
I really don't know what I'm doing wrong, hopefully I could get some insight here.
On a sidenote, I have a low tech shrimp tank with no co2, ferts and pretty high light. Not a spot of algae. And If I put anything from my hightech over with algae, it dies pretty fast in the low tech. Strange.