Hi all,
Because my filters sit at just below tank level (like the Eheim Ecco below), I don't have much effect of gravity to feed the tank water into the filter, so any constriction is likely to lead to problems with air in the filter etc.
The downside is <"they aren't easy to hide">.
cheers Darrel
I've gone to using bigger and <"bigger blocks of relatively coarse foam">. The other advantage is that I can use the same blocks on powerheads etc.A foam seems to work better for me. It needs regular cleaning but also reduces filter maintenance.
Because my filters sit at just below tank level (like the Eheim Ecco below), I don't have much effect of gravity to feed the tank water into the filter, so any constriction is likely to lead to problems with air in the filter etc.
The downside is <"they aren't easy to hide">.
cheers Darrel
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