Join Date: Aug 2004
Location: Wyevale ,Ontario, Canada
Big tanks and bpm
Looked through the search and could not find an answer to this.
Tank 130 gal wooden canopy
Lighting trichromic 2X95W VHO timer 9 hrs day
2X110W VHO timer 12 hrs day
filters ehim 2026 with co2 reactor on out flow, spray bar below surface pointed down
fluval fx5 (~600 gph) just above bottom
powerhead just below surface to keep scum off, min surface disturbance
co2 pressurized steady flow ~6bps timer 1/2 hour before and after lights
Tank par gh 300ppm
kh 190 ppm
ph 7.4 to 6.9
tap water gh 300
ph 7.4 from tap 8.2 after 24 hours
WC 50% weekly
PH testing done with electronic PH probe.
plants are a mixture of stem, swords and crypts. Growth so so, alge bba and green on glass.
Substrate and rock work has been tested with muriatic acid to ensure that it will not react with the co2 and increace the buffer.
Is it normal:
1 to need such a high bpm count
2 to take 2 days to move PH after WC. 50% sunday PH 7.4 PH(tankreading) does not drop to 7.0 until some time on Tuesday.
If any more information is needed I will try to find it.