Advice for flooding after DSM? - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 07-18-2018, 03:04 AM Thread Starter
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Advice for flooding after DSM?

Hello,

I'm thinking about flooding my dsm tank really soon. I've been growing monte carlo and DHG for about 6 weeks now and I think I'm ready to take the plunge. Is there any best way to go about flooding? Should I fill the tank and then drain it once or twice to get any mold spores/algae/detritus out of the substrate? Should I continue to do 50% water changes everyday, and how long should I do this for? What are the benefits to constant water changes during this period, and will it affect my [unfinished] cycle in any way?

I've kept my lights on for 12 hrs/day during the dsm, and I don't know how much I can reduce the photoperiod without harming the plants? Also very worried about melting as I won't be providing CO2 other than some excel for extra carbon. Are there any ways to increase CO2 from the air during the transition, perhaps through extra aeration? Are there any other ways to avoid mass melting?

Also, I see a bit of greenness on one of my rocks, which I assume is some algae growth where the water pooled in one of the crevices or something. Is it best to treat it before filling, or should I wait to fill and then scrub it off before draining the water? What's the best method to avoid an algae bloom?

Hope someone out there can help. Thanks!
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post #2 of 3 (permalink) Old 07-18-2018, 04:45 PM
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I have yet to flood my DSM but I've been reading a lot about it and I found that once you flood, pressurized co2 will reduce the amount of melting and increase the rate of new growth. most of the time people get some melting because the plants are transition to a new environment. I'm not sure exactly how powerful your light is but 12 hours might be a bit too long. you can start at 12 hours and reduce as needed. as for water changes 50% a day seems excessive to me unless you have a lot of detritus and an excess of nutrients that might be leeching from the substrate. maybe 3-4 days really. as for any algae you may have now or will get once you flood, spraying Excel directly into the algae with a syringe will help kill it off

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post #3 of 3 (permalink) Old 07-18-2018, 06:37 PM Thread Starter
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Quote:
Originally Posted by nickquinteros View Post
I have yet to flood my DSM but I've been reading a lot about it and I found that once you flood, pressurized co2 will reduce the amount of melting and increase the rate of new growth. most of the time people get some melting because the plants are transition to a new environment. I'm not sure exactly how powerful your light is but 12 hours might be a bit too long. you can start at 12 hours and reduce as needed. as for water changes 50% a day seems excessive to me unless you have a lot of detritus and an excess of nutrients that might be leeching from the substrate. maybe 3-4 days really. as for any algae you may have now or will get once you flood, spraying Excel directly into the algae with a syringe will help kill it off

Sent from my SM-G950U using Tapatalk
I won't be providing pressurized CO2, so that's why I'm looking into other methods to reduce melting. Perhaps it is unavoidable to some extent but im hoping I can reduce it even a little bit I will definitely be reducing the photoperiod to at least half, but I wasn't sure if going too low (like 3-4 hours) would be a sort of shock? In terms of water changes, I just don't know how often I should be doing them, especially since I'll be starting up the tank's cycle once I fill up the tank. (My HOB filter has been cycling in a different place but the cycle is not finished yet.) And I'm not sure how water changes will affect the cycle.
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