And Nick no im afraid not. At the top are a few slits where water is meant to go down towards the filter however i didnt use this technique incase of the filter running dry... :/ I suppose I could tape it or something like that..
How are you getting on with the Hygrophila Polysperma in your low light set up?
I tried it in one of my low light, low tech set ups and I found the lower leaves died on me and it looked a mess. I put it down to lack of light at the lower levels. Maybe my low light is too low light .
The other 4 plants you have will be absolutely fine in a low light set up