Tuna Melt
Active Member
Those of you using Marco Rock (and especially those using Marco Base Rock). What are your nitrate levels?
I have 1-3 PPM nitrate and .07 phosphate. I have denitrification going on somewhere in my tank. My nitrates have been at that level for ~9 months except for a three week period following an in tank Cipro treatment after which nitrates spiked to 20. I believe the Cipro decimated the population of denitrifying bacteria hence the spike. My tank is loaded with fish and I feed heavy (1.75 cubes of mysis a day to a 30 gallon tank). I’ve been feeding almost exclusively mysis which has the highest N/P ratio of any common food we feed to our tanks. All this leads me to believe I have denitrification going on. I don’t think it’s in my 1-2 inch sand bed since I disturb it often and have slowly been syphoning it out (targeting a .75” depth) to rule that out. That basically leaves me with the rocks. 100% Marco Rock. The top suspect are these Marco base rocks I have that are mostly submerged in the sand. I have two medium peices in my ~30 gallon tank. I’d be curious to know if others that have these have similarly depressed nitrate levels.
www.bulkreefsupply.com
I have 1-3 PPM nitrate and .07 phosphate. I have denitrification going on somewhere in my tank. My nitrates have been at that level for ~9 months except for a three week period following an in tank Cipro treatment after which nitrates spiked to 20. I believe the Cipro decimated the population of denitrifying bacteria hence the spike. My tank is loaded with fish and I feed heavy (1.75 cubes of mysis a day to a 30 gallon tank). I’ve been feeding almost exclusively mysis which has the highest N/P ratio of any common food we feed to our tanks. All this leads me to believe I have denitrification going on. I don’t think it’s in my 1-2 inch sand bed since I disturb it often and have slowly been syphoning it out (targeting a .75” depth) to rule that out. That basically leaves me with the rocks. 100% Marco Rock. The top suspect are these Marco base rocks I have that are mostly submerged in the sand. I have two medium peices in my ~30 gallon tank. I’d be curious to know if others that have these have similarly depressed nitrate levels.
Medium Foundation Reef Saver Dry Live Rock
Joe from Unique Corals using MarcoRocks Foundation and Shelf Dry Live Rock to create an awesome aquascape! MarcoRocks Foundation Reef Saver Rock is the perfect base to any desirable aquascape. Each piece of foundation rock is cut flat on one side for stable placement and an architecturally...
www.bulkreefsupply.com
