Film Along Glasswall Of Tank

Hardwell

New Member
Aug 19, 2018
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Dallas, TX
Hi, names Hardwell, im a new member of the forum, originally from aquaticplantcentral and came here to get access for more variety of plants and to troubleshoot my issues, also a big fan of tom barr :) Not sure if this is the right area for my post but here is my issue.

I have a co2 injected 55g planted tank, somewhat densely planted. I dose EI method KNO3 1/4 tsp, Kh2PO4 1/8 tsp, K2SO4 1/8 tsp, and CSB-B 1/8 tsp, 50% WC on sunday. I do daily maintenance on it such as picking dead leaves out and dying leaves that are starting to grow BBA on them. I don't really have an algae issue besides a few BBA here and there but my main concern is the very thin slippery film that builds up along the glass wall. I can constantly wiping the inside glass down with a sponge every 2 days. Is it the same film that builds up on the surface?

Also, unrelated to the topic, where do I point my powerhead? I have a 600gph head and I tried to place it at the top left front so it points it at the front glass but the right bottom isn't receiving any flow. I don't see leaves moving. So I moved the powerhead to the top left back pointing towards the plant beds but now some of my limnophilas and pogostemon stellatus are blowing all over the place. So I aimed the powerhead somewhat higher. So the surface agitation i have is from my HOB filter and partially from the powerhead. Curious where you guys place your powerheads.
 
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Righteous

Subscriber
Apr 10, 2017
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Is the slippery film dark or clear? If it’s clear it’s just a biofilm of bacteria...which is a good thing. All tanks get it once cycled.
 

Hardwell

New Member
Aug 19, 2018
14
3
3
34
Dallas, TX
The film is foggy white. Tank is an established and cycled tank been running since beginning of this year. The water itself in the tank is clear but all 4 walls build up a thin slime of foggy white substance. I turned my HOB filter into a surface skimmer today going to see if this helps (Found a way to curve my intake up into the water surface). Trying to get a hold of this BBA. I know its a co2 issue based off of tom barrs posts. My tank water is at 4dkh, and my pH is at 6.6 or 6.8 I cant tell from the color meaning my CO2 is anywhere from 20-30ppm. I ordered a pH digital analyzer off amazon today to get more accurate readings. Too scared to turn co2 higher, dont want to gas my fish.
 
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