hello,
I have a 200 gallon preformed pond in my basement, i have had it set up for well over a year now....its planted with different plants and moss and grasses...for over 6-mos i was getting now plant growth...i am using a t-5 fixture for lighting and have sand/gravel mix for substrate....currently there is a mated pair of red swords in there with maybe 50-plus australian rainbows and one small PIKE 3" for population control on youngins....its filtered ONLY by a powerhead sponge. I never have amonia problems, i do weekly water changes. NOW THE PROBLEM. i wanted better plant growth, i looked into DIY c02 using 1-gallon container...what a HUGE difference...after 2-weeks of C02 my plants are now growing so fast i have to trim every week. SINCE using C02 i now have a problem with an oily film on the surface.....i use a milk jug to skim the ponds surface BUT now it comes back in 2-days.....why is this happening? and what are some suggestions to correct this?
Doug
I have a 200 gallon preformed pond in my basement, i have had it set up for well over a year now....its planted with different plants and moss and grasses...for over 6-mos i was getting now plant growth...i am using a t-5 fixture for lighting and have sand/gravel mix for substrate....currently there is a mated pair of red swords in there with maybe 50-plus australian rainbows and one small PIKE 3" for population control on youngins....its filtered ONLY by a powerhead sponge. I never have amonia problems, i do weekly water changes. NOW THE PROBLEM. i wanted better plant growth, i looked into DIY c02 using 1-gallon container...what a HUGE difference...after 2-weeks of C02 my plants are now growing so fast i have to trim every week. SINCE using C02 i now have a problem with an oily film on the surface.....i use a milk jug to skim the ponds surface BUT now it comes back in 2-days.....why is this happening? and what are some suggestions to correct this?
Doug
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my mix is 4 cups sugar, two teaspoons yeast...lasts 14-days rooughly...how can i tell that? i can tell you that both cups are filled to brim...and every 50 or so seconds some goes in and a big one comes out.